Never-Before-Seen Mineral Found Inside a Diamond

The diamond acted as a container, keeping a piece of calcium silicate perovskite stable as it moved towards the Earth’s surface

The 910-carat diamond discovered in Lesotho

World's Fifth-Largest Diamond Found in Lesotho

The 910-carat gem is a D-color, type-IIa stone, meaning it is completely colorless and has no visible impurities

Do Other Animals Cry and More Questions From Our Readers

You asked, we answered

The Cavern Grotto restaurant is located 21 stories underground.

Dine 21 Stories Underground in This 345-Million-Year-Old Cavern

Cavern Grotto, a new restaurant in Arizona, opens inside the largest dry cavern system in the country

Parisite-(La), a carbon-bearing mineral that was predicted by computer model before it was discovered.

Big Data (and You) Could Help Find 1,500 Undiscovered Minerals

Researchers are using new tools to predict where to find new minerals as well as to locate new sources of valuable resources like copper

Statuary inside the salt cathedral.

Step Inside This Underground Cathedral, Carved Into the Walls of an Abandoned Salt Mine

An old mine has transformed into a subterranean worship space, 650 feet underground

A man fills up buckets with dirt while hunting for diamonds at Crater Diamonds State Park in Murfreesboro, Arkansas.

Finders, Keepers: Five of the Best Places to Go Gem Hunting in the U.S.

From diamonds to emeralds, the United States is full of buried bling

Will Luxembourg Lead the Race for Space Mining?

The tiny nation announced its private industry partners for asteroid mining

Fossilized microbial mats, or stromatolites are one of the oldest fossils found on Earth. This one lurked in shallow waters 3.4 billion years ago.

Life and Rocks May Have Co-Evolved on Earth

A Carnegie geologist makes the case that minerals have evolved over time and may have helped spark life

Smithsonite, or zinc spar, is a carbon zinc ore.This mineral was named in 1832 after English chemist and mineralogist James Smithson (founding donor of the Smithsonian Institution).

We Are Missing At Least 145 Carbon-Bearing Minerals, and You Can Help Find Them

The Carbon Mineral Challenge is asking rock enthusiasts around the world to hunt for the undiscovered forms of this common element

Soon, space miners could lay claim to minerals in asteroids like this one.

Get Your Pickaxe and Spacecraft Ready, Space Mining Might be Legal Very Soon

The new Space Act would open up the potentially lucrative field of asteroid mining

Anthophyllite asbestos from Georgia

Why Are People Still Using Asbestos?

The story holds parallels with that of the tobacco industry

The famous "Big Hole" in Kimberley, South Africa

Peering Into Some of the World's Largest Mines

This interactive map will show you the sources of the planet's precious metals

The Most Abundant Mineral in the World Finally Gets a Name

It's so far underground, you've probably never heard of it

The Intel Science Talent Search honored the top winner and nine esteemed runners-up of its 2014 competition at a black-tie affair in Washington, D.C.

These Teenagers Have Already Accomplished More Than You Ever Will

The winners of this year's Intel Science Talent Search take on flu vaccines, stem cells and tools for diagnosing cancer

A computer simulation of how the Hope Diamond likely appeared when it was owned by King Louis XIV of France. The sunburst inside the stone results from specially-cut facets on its back, which produce a translucent area that conveys the color of the diamond's gold mounting.

The Hope Diamond Was Once a Symbol for Louis XIV, the Sun King

New research indicates that the stone was once specially cut to produce an image of a sun when mounted on a gold background

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