Minerals

When earthquakes squeeze quartz crystals, the mineral generates electricity that attracts gold particles.

How Large Gold Nuggets Form in Quartz Crystals During Earthquakes

Quartz, which can generate electricity, attracts large chunks of gold when stressed and squeezed by seismic shaking, according to a new study

An artist's rendition of a magma ocean on a volcanic planet. Scientists have theorized that our moon was covered in a magma ocean for millions of years after it formed.

Our Moon Was Likely Covered in a Magma Ocean Long Ago, and New Data From India's Lunar Rover Supports That Theory

Soil composition measurements from the Chandrayaan-3 mission reveal white rock called ferroan anorthosite, which would have floated to the surface in an ocean of magma

Rembrandt van Rijn completed The Night Watch, a group portrait of Amsterdam's local militia, in 1642.

What Is the Secret Ingredient Behind Rembrandt’s Golden Glow?

Scientists found arsenic sulfide pigments in "The Night Watch," arguably the artist's most famous painting

NASA's Perseverance rover took this selfie next to "Cheyava Falls," the rock in the center of the photo that might hold evidence of ancient life on Mars.

Mars Rover Finds Three Possible Signs of Ancient Life on a Single Rock

Scientists were cautiously optimistic about Perseverance's discovery, though they indicated further research is needed before drawing definitive conclusions

Speleologists in metallurgical “cooling suits” emerge from the extreme heat of a lava tube formed by the eruption in 2021 of Mount Fagradalsfjall.

Journey Into the Fiery Depths of Earth’s Youngest Caves

What Iceland's volcanoes are revealing about early life on our planet

An anonymous dentist recognized the jawbone, because it looked similar to the CT scans he reviews every day at work.

Dentist Discovers Human-Like Jawbone and Teeth in a Floor Tile at His Parents' Home

Scientists are planning to study the specimen, embedded in travertine from western Turkey, in hopes of dating and identifying it

Cinnabar powder covered the remains of 20 people, mostly women, in this megalithic tomb at the site of Valencina, Spain.

Ancient Iberians Ingested Red Dust Loaded With Mind-Altering Mercury

Bones in Spain suggest a mercury-rich mineral used for art and hallucinogenic trips poisoned a community 5,000 years ago

The ancient red pigment was held in an intricately decorated chlorite vial.

Tube of Ancient Red Lipstick Unearthed in Iran

New research suggests the nearly 4,000-year-old cosmetic may be among the oldest discoveries of its kind

The 7.46-carat brown diamond is about the size of a gumdrop.

French Tourist Finds 7.46-Carat Diamond at Arkansas State Park

Julien Navas plans to have the brown gem split into two pieces so he can give half to his fiancée and half to his daughter

Pink diamonds form when the gems' crystalline structure gets bent under intense pressure.

Geologists Unravel the Mysteries of Australia's Rare Pink Diamonds

The dazzling, blush-colored gems likely emerged from Earth's mantle some 1.3 billion years ago, when a supercontinent named Nuna broke up, study suggests

Aspen Brown unearthed the golden-brown diamond while visiting Crater of Diamonds State Park with her family.

Girl Celebrating 7th Birthday Finds 2.95-Carat Diamond

Aspen Brown stumbled upon the pea-sized, golden-brown gem while visiting an Arkansas park

"Cellphone: Unseen Connections" at the Smithsonian's National Museum of Natural History walks through every aspect of the technology.

How Cellphones Connect Us All

A new Natural History Museum exhibition explores how the devices link us to Earth and to a network of people worldwide involved in their supply chain

Interest in gold prospecting is growing across the country as the value of gold rises.

Five Places Where You Can Still Find Gold in the United States

Lucky for you, these gold rush hot spots have not yet run their mining course

Red ocher has served many history, from painting cave walls to tanning hides.

This 12,000-Year-Old Wyoming Quarry Could Be North America's Oldest Mine

The state's archaeologists believe people quarried red ocher at Powars II starting 12,840 years ago

Zeolite, a clay material found in kitty litter, may be the next tool to help reduce greenhouse gases in the atmosphere. 

Minerals Used in Kitty Litter Could Help Fight Climate Change

A MIT study shows how, when treated with copper, a clay called zeolite can convert methane to carbon dioxide, a less powerful greenhouse gas

Adam Hardin's 2.38-carat brown diamond "Frankenstone" is the size of a pinto bean.

Treasure Hunter Unearths 2.38-Carat 'Frankenstone' Diamond

Adam Hardin discovered the impressive brown gem at an Arkansas state park

Bon Ami Mine is located in Little Switzerland, North Carolina, about 50 miles northeast of Asheville.

Black Lights Turn This North Carolina Mine Into a Psychedelic Wonderland

The Bon Ami Mine’s deposits of the mineral hyalite glow fluorescent green under ultraviolet light

Early humans were likely exposed to mercury through cinnabar, a sulfide mineral that produces a bright red powder when pulverized.

Earliest Evidence of Mercury Poisoning in Humans Found in 5,000-Year-Old Bones

Researchers discovered the toxic element in remains buried across the Iberian Peninsula between the Neolithic period and antiquity

The researchers named the mineral davemaoite, after the well-known geophysicist Ho-kwang (Dave) Mao.

From Deep Within Earth's Mantle, This Never-Before-Seen Mineral Hitched a Ride to the Surface in a Diamond

Scientists previously synthesized the mineral in a lab using immense amounts of pressure, but they were surprised to find it in nature

DNA from the skin of this mummified sheep leg allowed researchers to study sheep husbandry practices in ancient Iran.

Researchers Recover DNA From 1,600-Year-Old, Naturally Mummified Sheep Leg

The molecules offer insights on ancient farming practices near the Chehrabad salt mine in Iran

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