Archaeology by Prau123 - Main Forum https://www.amazians.com/forum/main-forum/archaeology/ Forum & Archieves en-US Thu, 11 Jun 2026 16:40:05 +0000 wpForo 60 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/455/#post-37194 Thu, 11 Jun 2026 10:44:34 +0000

 

These days Kunzite is a popular pink gemstone, but it wasn't always a household name. In fact, for a long time, it was just an obscure, unnamed variety of the mineral spodumene.

That changed in 1902 thanks to a man named George F. Kunz. He was the legendary chief gemmologist for Tiffany & Co., and he was essentially the Indiana Jones of the gem world. When this vivid pink crystal was discovered in California, it was named in his honour, and Tiffany & Co. began heavily marketing it to the elite.

But even Tiffany knew the limitations of the stone. They didn't market it as a rugged, daily-wear engagement gem. They set it in massive, opulent, highly protected cocktail rings and pendants specifically designed to be worn to high-society evening events, safe from the sun and hard impacts. It is a stunning piece of jewellery history, but it was never meant to survive modern daily life.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/455/#post-37194 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/455/#post-37193 Thu, 11 Jun 2026 10:24:23 +0000

 

Rome ruled from Scotland to India, but largely ignored the Atlantic Ocean—the Romans called it Oceanus, the great outer sea. Medieval writers called it Mare Tenebrosum, the Sea of Darkness. Unpredictable winds, violent currents, no known destination. Their empire faced east. But in 1933, archaeologist José García Payón discovered something impossible: a small Roman terracotta head inside a sealed tomb near Toluca, Mexico. The tomb dated to before European contact. The floors above it were intact—nobody planted it after burial. Modern dating placed the artifact between 184 BC and 616 AD. The discovery was buried in academic journals and forgotten. In March 2026, the story resurfaced and went viral. How did a Roman artifact reach Mexico 1,300 years before Columbus? Romans did reach the Canary Islands (the "Fortunate Islands" mentioned by Pliny and Strabo). The North Atlantic Drift—the same current system that carries Gulf Stream water toward Europe—could carry a disabled Roman merchant vessel from the Canaries to the Caribbean in 40 to 60 days. No crew needed. Just wind and current. If even one Roman ship was blown off course in 800 years of maritime activity, the Tecaxic-Calixtlahuaca Head stops being impossible. It becomes inevitable. The artifact is housed at the Museo Nacional de Antropología in Mexico City.

 

 

 

 

 

 

 

 

 

 

 

 

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A 2,000-Year-Old Roman Head in a Sealed Mexican Tomb Raises Questions History Can’t Answer

 

March 18, 2026

 

 

AI-generated composite image representing the mysterious Roman terracotta head discovered at Tecaxic-Calixtlahuaca, juxtaposed with the ancient Mesoamerican pyramid where it was found.

 

In the heart of central Mexico, beneath layers of earth untouched for centuries, archaeologists uncovered a discovery that still unsettles historians today. Known as the Tecaxic-Calixtlahuaca Head, this small terracotta artifact—found in a pre-Hispanic burial—has sparked one of the most intriguing debates in archaeology: Did ancient civilizations from Europe reach the Americas long before Columbus?

A Discovery That Defied Expectations

The story begins in 1933, when Mexican archaeologist José García Payón led excavations at the ancient site of Tecaxic-Calixtlahuaca, located roughly 65 kilometers from modern-day Mexico City.

Within a carefully sealed burial beneath three intact floor layers of a pyramidal structure, Payón’s team uncovered a rich funerary offering. The grave contained pottery fragments, gold ornaments, bone artifacts, and pieces of rock crystal—typical materials of pre-Columbian Mesoamerica.

But among these objects was something entirely unexpected: a small terracotta head of a bearded man, with distinctly European features.

At first glance, the artifact appeared out of place. Its facial structure, beard style, and artistic execution did not resemble known indigenous Mesoamerican traditions. Instead, it looked strikingly familiar to something from the ancient Mediterranean world.

 

A Roman Face in the New World?

Decades later, the mystery deepened.

In 1961, Austrian anthropologist Robert Heine-Geldern examined the artifact and suggested it could date back as far as 200 BCE. Later, in the 1990s, German archaeologist Bernard Andreae—former director of the German Archaeological Institute in Rome—made a bold declaration.

According to Andreae, the head was “without any doubt Roman.”

His stylistic analysis pointed to the Severan period (193–235 CE), noting that the hairstyle and beard matched the fashion of Roman emperors from that era. If true, this would place the artifact’s origin in the Roman Empire—over a millennium before the burial in which it was found.

Scientific testing added another layer of intrigue. Thermoluminescence dating conducted in Germany suggested the object was indeed ancient, with a possible age range between the 9th century BCE and the 13th century CE. Crucially, this supported the idea that the artifact existed before Spanish contact with the Americas.

 

The artifact was discovered at the Tecaxic-Calixtlahuaca site alongside ceramic fragments, gold objects, bone, and rock crystal, sealed beneath three intact layers within a pyramidal structure.

The artifact was discovered at the Tecaxic-Calixtlahuaca site alongside ceramic fragments, gold objects, bone, and rock crystal, sealed beneath three intact layers within a pyramidal structure.

A Timeline That Doesn’t Add Up

The burial itself was dated between 1476 and 1510 CE—just years before Hernán Cortés arrived in Mexico in 1519.

This creates a perplexing timeline. If the head is genuinely Roman and predates the burial, how did it end up in a sealed pre-Hispanic grave?

The find challenges the long-standing narrative tied to Christopher Columbus, whose 1492 voyage is traditionally seen as the first contact between Europe and the Americas. While Norse expeditions to North America are now widely accepted, evidence of Mediterranean civilizations reaching Mesoamerica remains controversial.

Theories Behind the Enigma

Over the decades, researchers have proposed several explanations—each as fascinating as it is contentious.

  1. An Archaeological Hoax

One of the simplest explanations is also the most controversial: the artifact may have been planted.

Some researchers have suggested that a member of the excavation team placed the Roman head in the burial as a prank. According to later accounts, Payón was not always present during the dig and did not maintain exhaustive field notes—leaving room for doubt.

However, this theory relies heavily on hearsay. No direct evidence has ever confirmed deliberate tampering, and key witnesses are no longer alive to clarify the claim.

  1. Early European Contact

Another possibility is that the head arrived in the Americas during the earliest phases of European exploration—perhaps even before the Spanish conquest of Mexico.

While the burial predates sustained contact, it overlaps with the earliest decades of transatlantic exploration. Could a stray European object have traveled inland and been incorporated into indigenous burial practices?

Some scholars consider this plausible, though unlikely.

  1. A Drifting Shipwreck from the Old World

Perhaps the most intriguing hypothesis involves ancient transoceanic drift.

Researchers like Romeo Hristov have suggested that a Roman, Phoenician, or Berber ship could have been carried across the Atlantic by currents. If wreckage reached the shores of the Americas, objects like the terracotta head might have been collected and eventually traded inland.

Importantly, this scenario does not require sustained contact or exploration—only a single accidental crossing.

Still, critics argue that such an event, while theoretically possible, lacks supporting archaeological evidence.

  1. Trans-Pacific or Asian Routes

A less discussed but equally intriguing idea proposes that the artifact may have reached the Americas via Asia. Ancient trade networks and migration routes across Eurasia could, in theory, have transported objects over vast distances before eventually crossing into the New World.

However, this theory remains speculative and difficult to prove.

 

A small terracotta head depicting a bearded man with distinctly European features, identified by experts as a Roman-style artifact dating to the 2nd–3rd century CE.

A Mystery Still Unresolved

What makes the Tecaxic-Calixtlahuaca head so compelling is not just its unusual appearance, but the context in which it was found: a sealed, undisturbed burial.

Despite decades of study, no single explanation has achieved consensus. Each theory raises new questions, highlighting the complexity of interpreting archaeological evidence.

As archaeologist David Grove has pointed out, even if the head did arrive via a shipwreck, it would not necessarily prove intentional contact between civilizations.

And yet, the artifact remains an outlier—an object that does not fit neatly into established historical narratives.

Rewriting History—or Expanding It?

The Tecaxic-Calixtlahuaca head serves as a reminder that history is not always as settled as it seems. While extraordinary claims require extraordinary evidence, anomalies like this challenge researchers to remain open to new possibilities.

Was it a hoax? A lost relic of early exploration? Or evidence of a forgotten chapter in human history?

For now, the answer remains elusive.

Buried beneath layers of time, the Roman head continues to watch silently—its origins uncertain, its journey unknown, and its mystery very much alive.

 

 

 

 

 

 

 

 

 

 

 

 

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A 2,000-Year-Old Roman Head in a Sealed Mexican Tomb Raises Questions History Can’t Answer - Arkeonews

 

 

 

]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/455/#post-37193 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/455/#post-37192 Thu, 11 Jun 2026 10:13:41 +0000

 

The toga is the most recognizable symbol of ancient Rome. It wasn't Roman. Neither was the triumphal procession, the fasces, the purple robes of power, or — by the Romans' own account — the gladiatorial games. All of it came from the Etruscans, the civilization that ruled central Italy before Rome was anything more than a village. The Etruscans were a confederation of wealthy, independent city-states — master metalworkers, engineers, and traders who controlled the Tyrrhenian Sea. The toga descended from their tebenna, visible in Etruscan tomb paintings centuries before Rome. The fasces — a bundle of rods around an axe symbolizing power over life and death — was an Etruscan emblem of kingship. It survives today in government iconography worldwide and gave the word "fascism" its name. The triumph, the curule chair, and the regalia of Roman authority all trace back to Etruria. Rome absorbed the Etruscans piece by piece — adopting their elite, their gods, and their engineering, including the drainage systems beneath Rome itself. Then it let their language die. By the first century AD, almost no one could read Etruscan. They became the ghost in the Roman machine — the people who built Rome's identity, then disappeared beneath it.

 

 

 

 

 

 

 

 

 

 

 

 

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]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/455/#post-37192 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37191 Tue, 09 Jun 2026 08:18:43 +0000  

Planets and Moons that contain Gemstones

 

 

 

 

 

 

 

 

 

 

 

Yes, planets do contain gemstones. In fact, extraterrestrial gemstones are incredibly common, forming under the intense heat, pressure, and chemical conditions found throughout the cosmos.
Notable cosmic gemstone discoveries and theories include:
  • Diamond Rain (Uranus and Neptune): Deep within the atmospheres of these ice giants, extreme pressure and temperatures squeeze atmospheric methane into solid diamonds, which scientists believe actually shower down through the layers of the planets.
  • Opals (Mars): NASA's Curiosity rover found vast reserves of opals in the Gale Crater on the Red Planet, indicating that the area had an ancient, water-rich history.
  • Exoplanets:
    • 55 Cancri e: This "super-Earth" is so dense and carbon-rich that scientists theorize a massive portion of its structure is made entirely of diamond and graphite.
    • WASP-121b: This exoplanet is so scorching hot that it is believed to have clouds and precipitation made of vaporized liquid gems, such as corundum (the mineral that forms rubies and sapphires).
If you'd like, I can:
  • Detail how specific gemstones like diamonds or opals are formed on other planets.
  • Compare Earth's mineral composition to that of other terrestrial planets like Venus or Mars.
 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
Yes, planets contain gemstones, and they are actually quite common across the universe. Because gems are formed from basic chemical elements subjected to heat and pressure, any celestial body with the right geological conditions can produce them.
Scientists have found direct evidence of gemstones within our own solar system and on distant planets.
Gemstones in Our Solar System
  • Mars (Opals and Peridot): NASA's Curiosity rover discovered that the Gale Crater on Mars is teeming with opal. Additionally, Martian meteorites and surface scans have revealed large amounts of olivine, which is known as peridot when it reaches gem quality.
  • Uranus and Neptune (Diamonds): The intense atmospheric pressure on these ice giants splits methane gas into hydrogen and carbon. This causes diamonds to crystallize and literally rain down through the atmosphere toward the planet cores.
  • Mercury (Diamonds): Scientists suspect Mercury’s crust may contain massive amounts of diamonds formed from graphite after billions of years of asteroid impacts and volcanic activity.
Exotic Gems on Exoplanets
Outside our solar system, extreme environments create even more dramatic gemstone phenomena:
  • Liquid Gem Rain: On the ultra-hot gas giant WASP-121b, the atmosphere is rich in vaporized aluminum and titanium. Scientists believe this vapor condenses into liquid clouds that rain down rubies and sapphires (corundum).
  • Diamond Worlds: Exoplanets like 55 Cancri e are incredibly rich in carbon. Under intense internal pressure, a massive portion of this planet's interior is believed to be composed of thick layers of diamond and graphite.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes, moons can contain gemstones, but they typically look very different from the cut and polished stones in Earth's jewelry boxes. While Earth features a vast variety of colored gems shaped by water and life, lunar-style celestial bodies rely heavily on ancient volcanism and meteor impacts to create precious minerals.
Specific details on celestial gems include:
  • Earth's Moon: Lunar samples collected during the Apollo 17 mission contained gem-quality crystals of olivine (the mineral name for peridot) and labradorite. However, they are usually scattered in tiny specs within the rock rather than large, flawless veins.
  • Impact Diamonds: Moons subjected to violent asteroid strikes can theoretically house microscopic diamonds. The extreme shockwave pressure of high-speed collisions can instantly crystallize carbon-rich rock.
  • "Moonstone": Despite the name, the beautiful, shimmering feldspar gem known as "moonstone" is mined on Earth, not in space. It gets its name from its visual glow.

 

 

 

 

 

 

 
 
 
 
 
 
 
Yes, moons can contain gemstones, but they are generally raw, microscopic, or trapped deep inside planetary bodies rather than polished and glittering on the surface.
The cosmic environments of moons possess the necessary heat, pressure, and chemical ingredients to form various mineral crystals. However, the specific gemstones you would find on a moon look quite different from those found on Earth due to differing geological processes.
Gemstones Found on Earth's Moon
Apollo missions and lunar meteorites have confirmed that Earth's Moon contains several minerals that qualify as gemstones:
  • Peridot (Olivine): This olive-green gemstone is a major component of the lunar mantle. Sample 76535, brought back by Apollo 17, contains visible crystals of olivine.
  • Labradorite (Plagioclase Feldspar): The Moon's pale highlands are composed largely of a rock called anorthosite. This rock is rich in plagioclase feldspar, the same mineral group that produces the iridescent gemstone labradorite.
  • Spinel: Satellite observations have detected traces of magnesium-rich spinels within the lunar crust. On Earth, spinels are highly prized gems that come in vibrant reds and blues.
  • Nanodiamonds: The Moon does not have the intense internal volcanic activity required to push large diamonds to the surface like Earth does. However, the extreme heat and pressure from massive asteroid impacts have likely flash-compressed carbon into microscopic "shock diamonds" near craters.
(Note: Despite its name, the popular gemstone moonstone is not found on the Moon; it is an Earth-born feldspar named purely for its watery, shimmering aesthetic.)

 

 

 

 

 

 

 

 

 

 

What About Other Moons?
 
Scientists predict that other moons in our solar system hold even greater potential for distinct gem formations:
  • Volcanic Moons (e.g., Jupiter's Io): Extreme, constant volcanic activity can melt and recrystallize silicate minerals, creating conditions ripe for olivine and other crystalline structures.
  • Icy Moons (e.g., Saturn's Enceladus or Jupiter's Europa): Gemstones like opals require liquid water and geothermal heating to form. The subterranean oceans beneath the frozen crusts of these moons could theoretically harbor opals near hydrothermal vents on their rocky floors.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outer space is a treasure chest of gemstones

 

Scientists suspect it might be raining diamonds on Neptune and Uranus. Evidence of opal on Mars hints at a watery past. Outside our solar system, there may be rubies and sapphires too. But the gems that form within Earth still might be the most dazzling.
 
By  | Published: February 8, 2021 | Last updated on May 18, 2023
 
 
4626

DRN Studio/Shutterstock
 
In 2012, scientists announced they’d found a planet, 55 Cancri e, that was made out of diamond. The idea was based on estimates of the planet’s size and density.

Soon after their work was published, however, other research suggested they’d been wrong.

Roger Clark, a senior scientist at the Planetary Science Institute in Tucson, explains that to come to these kinds of conclusions, scientists work backward, starting with the size and mass of a planet. They use that information to estimate density, and then work to determine what kind of materials could produce that density. But, he says, “it’s not proof that those materials are there.”

While the entire planet of 55 Cancri e may not be made of diamond, there is good reason to believe that diamonds do exist outside of Earth, throughout the universe, along with other precious stones like opal, rubies, and sapphires.

“We can form all sorts of gemstones potentially in space, as long as you have the right chemistry in the right temperature and conditions,” says Wendy Mao, a professor of geological sciences at Stanford University.

Diamonds

“Diamonds are just pure carbon,” says Mao. And carbon is abundant in the universe. However, diamonds don’t just spontaneously form anywhere there’s carbon; a particular set of circumstances must exist. Along with extremely high temperatures and pressures, diamonds form in environments that lack oxygen.

Diamonds shouldn’t even really exist on the Earth’s surface. “It’s not stable,” explains Mao, adding that a pure diamond would not survive a house fire because the heat would help it react with oxygen in the atmosphere. “If it’s able to react with oxygen, it would turn to carbon dioxide or graphite and destroy the diamond.”

In 1987, scientists found nanodiamonds — tiny microscopic pieces of diamonds — in meteorites. Inside those nanodiamonds, researchers have since found trapped gasses and minerals that give clues about when and where they formed. For example, ureilite meteorites — a type of meteorite with a high percentage of carbon, named for Novy Urey, a village hit by a meteor in 1886 — contain diamonds. In those diamonds, researchers found materials that suggested that the gems were created inside a planetary body as old as the solar system. However, some scientists still dispute this, and suggest these diamonds could be the results of powerful collisions between smaller objects.

Researchers also suspect that it could be “raining diamonds” on Neptune and Uranus. The scientists conducted experiments here on Earth mimicking the temperatures and pressures on these planets and found that they are intense enough to form diamonds. Then, because the diamonds are heavier than the environments surrounding them, they’d sink into the planet — a little like rain. The sinking diamonds generate friction, which the researchers say may help explain why these icy planets generate more heat than we would expect.

Opal, rubies, and sapphires

For opal to form, there has to be water and heating events such as volcanic eruptions or major impacts — both of which Clark’s team knew existed on Mars. Among the astronomical community, there’s a joke about “NASA’s monthly announcement of the discovery of water on Mars,” he says. “Every infrared spectrum that’s ever been taken of Mars from all the spacecraft that have gone — every single location shows water. So there’s water at some level all over Mars.”

An infrared spectrum is a measurement of how much infrared light a particular material absorbs. The spectrum, a horizontal line with a series of spikes similar to a heart rate measurement, allows scientists to identify different compounds, like minerals.

But researchers can’t just measure the spectrum of an entire planet. They can only use the technology to look at one very small region at a time. “We only have postage-stamp views of small locations to get the really fine details,” says Clark. And in 2008, in one of those small views, his team found opaline silica, the building block of opal. Because much of the planet is covered in dust storms, he says, “it’s hard to find locations where other things are exposed, where you can start to really understand the planet’s history. So finding locations where we can see other minerals is always exciting,” even if it was expected.

Researchers have even predicted that distant planets in other solar systems could be filled with gems like ruby and sapphire based on their size and proximity to the star at the center of their systems. Scientists have found evidence of cubic zirconia in Moon rocks, showing that the universe not only holds diamonds, but its own fire-safe knock-offs. Space could be absolutely shimmering with precious stones, though Mao emphasizes that they probably aren’t quite like the ones in earthlings’ jewelry boxes. “Some of the conditions to form really nice gem quality — large crystals that are clear or that have the color we want — they do require the interaction of water,” says Mao, in a way that “probably is unique to Earth’s liquid water as we know it.”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Outer space is a treasure chest of gemstones

 

 

 

]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37191 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37190 Tue, 09 Jun 2026 08:02:24 +0000  

 

Rubies on Mars? Rover finds fluorescent gems for 1st time

Posted by
 
Paul Scott Anderson
 
March 29, 2026
 
Rubies on Mars: View of hilly, barren gravel-covered terrain with mountains in the distance.
View larger. | The Perseverance rover captured this view as it ascended up the to the rim of Jezero Crater on December 5, 2024. Now the rover has found rubies on Mars, or perhaps sapphires, in tiny pebbles on the outside of the crater rim. Still image from video via NASA/ JPL-Caltech/ ASU/ MSSS.
  • NASA’s Perseverance rover has found tiny gemstones in Martian pebbles. They are composed of corundum.
  • The gems are likely rubies or maybe sapphires, the rover’s analysis suggests. The gems were in a region outside the rim of Jezero Crater.
  • Meteorite impacts likely formed the gems. On Earth, tectonic activity forms these gemstones.

Rubies on Mars?

NASA’s Perseverance rover has found something never seen before on Mars: fluorescent gems like rubies, or perhaps sapphires. The tiny gem grains are inside pebbles near the rim of Jezero Crater. Ann Ollila at Los Alamos National Laboratory in New Mexico led the research team. The researchers said that the gem grains are composed of corundum. On Earth, corundum is also known as the minerals ruby or sapphire. The difference depends on the trace metals inside it. It is also usually associated with tectonic activity.

Leah Crane wrote about the new discovery in New Scientist on March 18, 2026.

Ollila presented the results at the Lunar and Planetary Science Conference (LPSC 2026) in Texas on March 16, 2026. The two conference papers are available here and here.

 

 

Perseverance finds fluorescent gems on Mars

Perseverance found the first gems inside a small rock called Hampden River. Later, it found similar gems in two more pebbles, Coffee Cove and Smiths Harbour. These pebbles are on the outside of Jezero Crater, near the rim. These gem grains are tiny, only about 0.008 inches (0.2 mm) across.

The rover used its SuperCam instrument to analyze the rocks, using two different lasers. The lasers can analyze the composition of the pebbles. They can also be used to create luminescence – the emission of optical radiation (ultraviolet, visible or infrared) by a substance due to a process other than heating – if the rocks contain luminescent materials. And indeed they did … the resulting luminescent light showed that the rocks contain corundum.

Closeup images of 2 small stones, labeled A and B. They have tiny yellow circles and red numbers on them.

Remote Micro-Imager (RMI) images of the pebbles Hampden River (top) and Coffee Cove (bottom). The red crosses mark the observations by the Laser Induced Breakdown Spectroscopy (LIBS) instrument. Meanwhile, the yellow circles mark the observations by luminescence spectroscopy. Image via NASA/ Sharma et al./ LPSC.

Did meteorite impacts form the rubies on Mars?

On Earth, rubies and sapphires usually form from tectonic activity. But what about Mars? The planet does have some residual tectonic processes now, and it had much more activity in the past. It’s probably not enough to account for the gems, however. And Mars never had plate tectonics, the way Earth does. As Ollila explained to New Scientist:

usually is associated, on Earth, with tectonism. It’s a very specific environment; you have to have a very silica-poor environment, very aluminum-rich.

Instead, the researchers said that meteorites impacting the Martian surface likely formed the corundum. Allan Treiman at the Lunar and Planetary Institute in Texas said:

I was very surprised. In retrospect, one might not have been, because there are aluminum-rich outcrops elsewhere on the planet and there are impacts, but I thought it was very shocking to see this.

Ollila added:

I would love to be able to pick one of those up and analyze it and see if it looks red. It’s pretty disappointing that all you can see is this white pebble.

Smiling woman with long brown hair.

Ann Ollila at Los Alamo National Laboratory led the research team studying the fluorescent gems that Perseverance found. Image via Loop.
Oblong, somewhat rectangular rough irregular red crystal.
View larger. | A naturally occurring ruby crystal on Earth. Image via Adrian Pingstone/ Wikimedia Commons.

Rubies on Earth

On our planet, rubies are red gemstones composed of transparent red corundum, a mineral form of aluminum oxide. And the color of rubies can vary from deep cochineal to pale rose red. Plus, in some cases there is a tinge of purple in rubies. The most valued color of a ruby is a pigeon-blood red.

In addition, it is also possible to produce rubies artificially. These synthetic rubies can possess the physical characteristics of natural corundum. However, they may be distinguished by microscopic bubbles and striae.

In 2023, scientists reported that NASA’s Curiosity rover also found opal on Mars. Opal is another clue pointing to past water in the region and habitable conditions in the past.

Bottom line: Are there rubies on Mars? NASA’s Perseverance rover has found tiny fluorescent gems in pebbles that appear to be rubies or sapphires.

 

 

 

 

 

 

 

 

 

 

 

NASA Discovers Precious Gemstones on Mars

Would bling made of these be the biggest flex in the solar system?

By Victor Tangermann

Published

Scientists believe to have discovered a massive cache of precious gemstones on the surface of Mars in the form of opals.

 
Image: NASA

Scientists believe they’ve discovered a cache of gemstones on the surface of Mars.

No, we’re not talking about diamonds — according to a study published last month in the Journal of Geophysical Research: Planets by a team of Arizona State University and NASA-affiliated researchers, the Red Planet’s Gale Crater is teeming with opals.

Let’s get it out of the way: bling iced out with precious gems from another planet sounds like the coldest flex in the solar system. But there’s also scientific significance to the finding, which suggests that the area held vast reserves of water far more recently than we previously thought. That means the discovery could also force us to rewrite theories of ancient life on Mars.

Over the last couple of years, researchers have found “fracture halos” of lighter-colored rock in images taken by NASA’s Curiosity rover, which they suggest are likely largely made out of opal, a bluish hydrated mineral.

But now it turns out these buried riches appear to be far more abundant than previously thought, according to the new research, and can be found all over the Gale Crater, an expansive ancient lake bed that Curiosity has called its home for the last decade.

“Our new analysis of archival data showed striking similarity between all of the fracture halos we’ve observed much later in the mission,” said lead author Travis Gabriel, postdoctoral fellow at Arizona State, in a statement. “Seeing that these fracture networks were so widespread and likely chock-full of opal was incredible.”

The discovery is particularly intriguing considering that opals are formed when silica are dissolved in water. Subsurface regions of the crater may have once sheltered life from the harsh temperatures and radiation at the surface — long after much of the water had already disappeared from the planet’s surface.

“Given the widespread fracture networks discovered in Gale Crater, it’s reasonable to expect that these potentially habitable subsurface conditions extended to many other regions of Gale Crater as well, and perhaps in other regions of Mars,” Gabriel said in the statement. “These environments would have formed long after the ancient lakes in Gale Crater dried up.”

Instead of eventually making their way into the extraterrestrial bling, these gems might even end up serving a far more important purpose. Since the water and silica that make up opal can be separated relatively easily, they could potentially serve as a crucial source of water for future astronauts walking the Martian surface.

In fact, a single three-foot section of fractured halo can release roughly 1.5 gallons of water within the top foot of the surface, something the researchers were able to demonstrate in experiments.

In short, the opal dates back to an entirely different period of time in Mars’s history, suggesting that several other unexpected regions of the Red Planet may still be teeming with water to this day — a tantalizing prospect for future astronauts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rubies and opals on Mars? The real treasure in the planet’s gemstones may not be what you think

NASA’s Mars rovers have found traces of minerals akin to those that make up precious gems on Earth. But their appearance and abundance on Mars is likely very different, experts say

By Adam Kovac edited by Claire Cameron

 

NASA’s Perseverance rover on the surface of Mars


NASA/JPL-Caltech/MSSS

 

The surface of Mars may be littered with traces of the same minerals that make up rubies, sapphires and opals on Earth—but there are critical differences that mean any potential future mining expedition to the Red Planet would almost certainly be a bust. Instead, experts say, the minerals’ presence and the way that they came to be could offer clues to Mars’s planetary history and the question of whether the world ever hosted life.

A growing body of evidence collected by both NASA’s Mars rovers and satellites orbiting the planet suggest that Mars does hold some quotient of gemstonelike minerals. For example, a paper published in April analyzed observations of stones inside the planet’s Jezero Crater made by NASA’s Perseverance rover’s near-infrared spectrometer. The instrument can identify minerals by analyzing their light signatures. It found that the light-toned stones contained high amounts of corundum, a form of oxidized aluminum. That’s the family of minerals that includes expensive jewels such as rubies and sapphires.

But while the stones on Mars bear a passing resemblance to gems such as rubies on a molecular level, they are not the shimmering red rocks we might find on Earth, says Candice Bedford, a co-author of the study and a research scientist at Purdue University. On our planet, rubies are made in the extreme heat and pressure of Earth’s crust as a result of plate tectonics. But on Mars, the corundum likely formed as a result of an asteroid impact in which aluminum in the asteroid rapidly fused with Martian minerals.

The means the stones on Mars are “not really going to be gem quality, because they’re made within seconds of this intense impact,” Bedford says. She points to diamonds discovered in Siberia’s Popigai impact structure; forged in an asteroid strike, they are quite unlike diamonds created by Earth’s geological forces. They don’t share natural diamonds’ shine and tend to be extremely small—too tiny for use in jewelry. Similarly, the corundum on Mars was found in stones about “the size of pebbles,” Bedford says, while the mineral traces themselves were even smaller—less than a millimeter.

Further evidence gathered by both the Mars Reconnaissance Orbiter, a satellite that probes Mars’s surface for clues to its current and past geology, and NASA’s Perseverance rover suggests the planet also has material made up of crystals of hydrated silica—a mineral better known on Earth as opal. Like the corundum, however, the size of the opals found on Mars appear to be very small, says Vivian Sun, a planetary scientist at NASA’s Jet Propulsion Laboratory.

“I think, definitely, there is the misconception that these are gemstone-quality-type rocks that we’re reporting on Mars,” Sun says. “That is definitely not the case.”

Even if it were, mining Mars for gems would make little economic sense, says Matt Gialich, CEO and co-founder of the asteroid mining firm AstroForge. High-quality rubies and opals are still accessible here on Earth, making the expense of developing and launching a Martian mining operation pointless from that perspective.

 

Still, like the rubies, the opals hold incredible scientific value, offering clues to whether Mars was ever home to life. The structure of opal crystals makes them well-suited to preserving biosignatures of tiny life-forms such as bacteria. But finding those potential biosignatures would require bringing a sample back to Earth to examine with an electron microscope.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Article

 

 

Rubies on Mars? Rover finds fluorescent gems for 1st time

 

 

 

NASA Discovers Precious Gemstones on Mars

 

 

 

Gemstones on Mars—why the Red Planet could be harboring rubies, opals, and more | Scientific American

 

 

 

 

 

 

 

 

 

 

 

Yes, Mars contains gemstones. NASA rovers have discovered deposits of rubies, sapphires, and vast reserves of opal scattered across the Martian surface.
The specific locations and origins of Martian gems include:
  • Rubies and Sapphires: NASA's Perseverance rover discovered tiny, fluorescent grains of corundum (the mineral that forms both rubies and sapphires) in pebbles outside the rim of the Jezero Crater. Unlike Earth, where gems are formed by plate tectonics, these Martian crystals were likely forged by the extreme heat and pressure of ancient meteor impacts.
  • Opal: Researchers analyzing data from NASA's Curiosity rover found "fracture halos" in the Gale Crater that consist largely of hydrated silica, otherwise known as opal. Because opals form when silica dissolves in water, these deposits indicate that Mars once held vast reserves of liquid water.
While Mars has plenty of these minerals, experts note that they are not gem-quality or large enough to mine for jewelry; they serve primarily as geological indicators of the planet's ancient, watery past.

 

 

 

 

 

 

 

 

 

 

Yes, Mars contains gemstones, but they are not the glittering, jewelry-grade riches you might expect.
NASA rovers have confirmed the presence of opals, rubies, and potentially sapphires embedded in Martian rocks. However, these planetary gems are microscopic, rough, and primarily formed through violent cosmic collisions rather than steady geological forces.
 
Confirmed Martian Gemstones
  • Rubies and Sapphires (Corundum): NASA's Perseverance rover discovered tiny, fluorescent grains of corundum—the mineral parent of rubies and sapphires—inside pebbles near the rim of Jezero Crater. These crystals are less than 0.2 millimeters across, meaning they lack the natural shine and size required for jewelry.

 

 

 

 

 

]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37190 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37189 Mon, 08 Jun 2026 23:20:35 +0000  

Are modern Expats of today the Explorers of the past?

 

Some past explorers documented in their journals of what they saw such as the famous explorer Marco Polo who kept notes about his life and adventures of 24 years in Asia. However, it is not until he was in Genoa that he would eventually explain his epic journey and share his notes to a fellow countryman who eventually wrote the accounts. The book called The Travels of Marco Polo would later on be published and it became an instant bestseller during the medieval period. Fast forward to today and more of the same is happening. The expats (expatriates) have traded pens and papers for computers and cellphones. The expats also traded sail boats and pack animals for motorboats, road vehicles and airplanes. They are vlogging their journey and uploading them on YouTube and other social media platforms at an incredible rate when compared to what explorers had to endure for several years before their story were finally recognized. They are basically informing us on what's going on in the other side of the world and how to deal with unfamiliarity and circumstances. For those who spent years abroad, they share a story of their life-long experience which includes what they've learn residing in foreign countries that's been missing in their life and in the contrary what they've missed being away from home. While some past explorers and expats of today are vagabonds, the majority of them are searching for a better, meaningful life away from the hassle and expense of the modern lifestyle back home.

 

 

 

 

 

 

 

 

 

 

 

 

 

The Southeast Asia Loophole Nobody Talks About

 

 

 

 

 

 

 

 

 

 

 

Video

 

 

https://youtu.be/UmIS5Ftc2ao

 

 

 

]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37189 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37188 Sun, 07 Jun 2026 22:46:07 +0000  

How the Murals of Bonampak Changed Maya History

 

 

 

 

 

 

 

 

 

 

 

 

 

Video

 

 

 

https://youtu.be/P6pebqAkZFY

 

 

 

]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37188 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37187 Sun, 07 Jun 2026 22:43:59 +0000  

MEXICO: The 30-Metre Megaliths You've Never Seen — Older Than the Aztecs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

In the highlands of Jalisco, Mexico stand 30-metre megaliths carved with spirals — older than the Aztecs, and barely surveyed. Hidden on the Tapalpa plateau of western Mexico, the boulders of Las Piedrotas rise as high as 30 metres, their crowns pecked with tight spirals and concentric circles that no one has ever deciphered. For a hundred years, three theories — meteorites, a vanished lake, an eroded mountain — have tried to explain them, and none answers the real question: why did ancient hands climb only THESE stones to carve them?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Video

 

 

https://youtu.be/LSrmQvG-AOk

 

 

]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/454/#post-37187 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/453/#post-37186 Sun, 07 Jun 2026 22:41:42 +0000 The Truth About the Silk Road That Traditional History Gets Wrong

 

 

 

 

 

 

 

 

 

 

 

Video

 

 

 

https://youtu.be/vqNtp_RPYEg

 

]]> Main Forum Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/453/#post-37186 RE: Archaeology by Prau123 https://www.amazians.com/forum/main-forum/archaeology/paged/453/#post-37185 Sun, 07 Jun 2026 07:00:18 +0000
World known to the Romans, around 150 AD.
Vintage Maps
 
@vintagemapstore
 
A lovely overview of the approximate limits of the world known to the Romans, around 150 AD.
 
Map by Don Davis.

 

 

 

 

 

 

 

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Romans went beyond further than what is shown on the map above.

 

 

 

 

 

 

Romans and Greeks before them may have visited the Spice Islands (historically the Moluccas or Maluku Islands) of the Indonesian archipelago. Some centuries before 150 AD, the Greeks themselves were traveling by sea to India and Southeast Asia as merchants, traders, and explorers. Unfortunately, there is scant information of their journey traveling further eastward from the Southeast Asian peninsula during this period. A likely scenario is that once the Greeks and then later on the Romans arrived on the southern peninsula of Southeast Asia, they then transferred to a local ship such as an outrigger. They sailed with a local guide eastward towards the thousand islands of Indonesia until finally arriving on the Spice Islands of the Banda Sea. This may explain why their journey were left unrecorded or scantly recorded.

Back in those days, they wanted to visit the trade centers located in India and in the peninsula of Southeast Asia but also the plantations of where several of the spices originated from such as Sri Lanka and the Spice Islands. 

 

 

 

 

Roman Galicians arrived in South America between 50 BC to 10 AD. The people exist today in Peru, and they are closely genetically related to the people found in Galicia, Spain. 

 

 

Romans in 150 AD visited the Baltic Region as mentioned below. 

 

 

 

 

 

 

 

 

 

 

Amber Road

From Wikipedia, the free encyclopedia
 
 
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The ancient route from the Baltic Sea to the areas of the Roman Empire by the Mediterranean Sea


Amber deposits in Europe

The Amber Road was an ancient trade route for the transfer of amber from coastal areas of the North Sea and the Baltic Sea to the Mediterranean Sea.Prehistoric trade routes between Northern and Southern Europe were defined by the amber trade.

As an important commodity, sometimes dubbed "the gold of the north", amber was transported from the North Sea and Baltic Sea coasts overland by way of the Vistula and Dnieper rivers to Italy, Greece, the Black Sea, Syria and Egypt over a period of thousands of years.

The route developed into an important trading and military route for the Roman Empire, and also formed the basis of several present-day transport routes.

Antiquity

The oldest trade in amber started from Sicily. The Sicilian amber trade was directed to Greece, North Africa and Spain. Sicilian amber was also discovered in Mycenae by the archaeologist Heinrich Schliemann, and it appeared in sites in southern Spain and Portugal. Its distribution is similar to that of ivory, so it is possible that amber from Sicily reached the Iberian Peninsula through contacts with North Africa. After a decline in the consumption and trade of amber at the beginning of the Bronze Age, around 2000 BC, the influence of Baltic amber gradually took the place of Sicilian amber throughout the Iberian Peninsula from around 1000 BC. The new evidencecomes from various archaeological and geological locations on the Iberian Peninsula.

From at least the 16th century BC, amber was moved from Northern Europe to the Mediterranean area.The breast ornament of the Egyptian Pharaoh Tutankhamen (c. 1333–1324BC) contains large Baltic amber beads.Schliemann found Baltic amber beads at Mycenae, as shown by spectroscopic investigation.The quantity of amber in the Royal Hypogeum of Qatna, in Syria, is unparalleled among known second millennium BC sites in the Levant and the Ancient Near East.Amber was sent from the North Sea to the Temple of Apollo at Delphi as an offering. From the Black Sea, trade could continue to Asia along the Silk Road, another ancient trade route.

In Roman times, a main route ran south from the Baltic coast (modern Lithuania), the entire north–south length of modern-day Poland (likely through the Iron Age settlement of Biskupin), through the land of the Boii(modern Czech Republic and Slovakia) to the head of the Adriatic Sea (Aquileia by the modern Gulf of Venice). Other commodities were exported to the Romans along with amber, such as animal fur and skin, honey, and wax, in exchange for Roman glass, brass, gold, and non-ferrous metals such as tin and copper imported into the early Baltic region.As this road was a lucrative trade route connecting the Baltic Sea to the Mediterranean Sea, Roman military fortifications were constructed along the route to protect merchants and traders from Germanic raids.

The Old Prussian towns of Kaup and Truso on the Baltic were the starting points of the route to the south.In Scandinavia the amber road probably gave rise to the thriving Nordic Bronze Age culture, bringing influences from the Mediterranean Sea to the northernmost countries of Europe.

Whilst called the Amber Road, the prized gemstone was the smallest share of goods transported along the route.

Known roads by country

EV9 The Amber Route is a long-distance cycling route between Gdańsk, Poland, and Pula, Croatia, which follows the course of the Amber Road.

Austria

Near the villages of Petronell-Carnuntum and Bad Deutsch-Altenburg, the Roman ruins of Carnuntum mark a major trading site of the Amber Road and also the Limes Road.

Belgium

A small section led southwards from Antwerp and Bruges to the towns Braine-l'Alleud and Braine-le-Comte, both originally named "Brennia-Brenna".The route continued by following the Meuse towards Bern in Switzerland.

Estonia

In Estonia, the old coastal Amber road route is going north-south along the E67 highway from Reiu in Häädemeeste Parish of Pärnu County, where it continues as 331 local road between Rannametsa and Ikla villages.

France and Spain

Routes connected amber finding locations at Ambares (near Bordeaux), leading to Béarnand the Pyrenees. Routes connecting the amber finding locations in northern Spain and in the Pyrenees were a trading route to the Mediterranean Sea.

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Amber Roads in Germany

Germany

Several roads connected the North Sea and Baltic Sea, especially the city of Hamburg to the Brenner Pass, proceeding southwards to Brindisi (nowadays Italy) and Ambracia (nowadays Greece).

Italy

In northern Italy, Aquileia was a major Roman city and near one end of the road where amber was found, and also shaped.

Netherlands

A small section, including Baarn, Barneveld, Amersfoort and Amerongen, connected the North Sea with the Lower Rhine.

Poland

The shortest (and possibly oldest) road avoids alpine areas and led from the Baltic coastline (nowadays Lithuania and Poland), through Biskupin, Milicz, Wrocław, the Kłodzko Valley (less often through the Moravian Gate), crossed the Danube near Carnuntum in the Noricum province, headed southwest past Poetovio, Celeia, Emona, Nauportus, and reached Patavium and Aquileia at the Adriatic coast. One of the oldest directions of the last stage of the Amber Road to the south of the Danube, noted in the myth about the Argonauts, used the rivers Sava and Kupa, ending with a short continental road from Nauportus to Tarsatica in Rijekaon the coast of the Adriatic.

Slovenia

Coming from Aquileia (Italy), the Roman city of Emona (now within the Slovenian capital of Ljubljana) was on the south-west to north-east route, continuing to Celeia (now-Celje) and Poetovio (now-Ptuj), before going onto Scarbantia (now Sopron, Hungary).Novo Mesto in southern Slovenia was also involved in the amber trade.

Switzerland

The Swiss region indicates a number of alpine roads, concentrating around the capital city Bern and probably originating from the banks of the Rhône and Rhine.

Modern usage

The Amber Road (east route), as hypothesized by Polish historian Jerzy Wielowiejski, Główny szlak bursztynowy w czasach Cesarstwa Rzymskiego (transl. Main Route of the Amber Road of the Roman Empire), 1980

There is an unofficial set of tourist sites stretching on a route along the Baltic coast from Gdańsk, Poland to Pärnu, Estonia called the "Amber Road". Notable "Amber Road" sites on the route include:

Dating from the 1st century BC amber deposit found in Party nice near Wrocław. It is the world's largest archaeological find of amber, estimated at 1,240–1,760 kilograms (2,730–3,880 lb). Currently it is in the Archaeological Museum in Wrocław.

In Poland, the north–south motorway A1 is officially named Amber Highway.

In Russian,Kaliningrad Oblast is occasionally referred to as 'the amber region' (Янтарный край).

The StudyEU Amber Road European University Alliance is a university network linked to the ancient route, formed to strengthen international cooperation and cohesion.

The modern Baltic–Adriatic Corridor connects the two seas along routes that roughly follow the Amber Road.

 

 

 

 

 

 

 

 

 

 

 

 

Wikipedia

 

 

Amber Road - Wikipedia

 

 

 

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