Here's the perfect Christmas gift for the person who has everything: A red and green rock, ornament-sized, stuffed with 30,000 teeny-tiny diamonds.
Scientists believe they have solved a 40-year-old mystery about what caused rocks collected by NASA's Apollo astronauts to become magnetized.
Geoengineering advocates say it's time to look at the carbon-absorbing ability of the mineral olivine. But critics say it might do more harm than good. Continue reading →
Despite being one of the poorest nations in the world, Afghanistan may be sitting on one of the richest troves of minerals in the world.
The bewildering shapes apparently owe their origin in large part to how rock can strengthen when squashed from above.
Deep within the Earth's rocky mantle lies oceans' worth of water locked up in a type of mineral called ringwoodite.
The new substance will forever remain in Earth's rock record, researchers say.
NASA's Mars rover has drilled into its third Mars rock, exposing pristine material that will help scientists better understand the past habitability of the red planet.
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