Geologists from ETH Zurich and the University of Melbourne have now established a link between their occurrence and the mineral olivine. This could make the search for diamonds easier in the future.

Mars wasn't always the cold desert we see today. There's increasing evidence that water once flowed on the red planet's ...

Billions of years ago, Mars had a thick atmosphere and water, but in both cases, just a tiny amount remains today. Both ended ...

Using a model based on Earth's rock chemistry, they theorized that early Martian water interacted with ultramafic rocks, a type of igneous rock rich in the mineral olivine. As water trickled ...

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New research suggests Mars' missing atmosphere -- which dramatically diminished 3.5 billion years ago -- could be locked in the planet's clay-covered crust. Water on Mars could have set off a chain ...

More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal structure—have been found on Earth. They are formed of simple ...

Peridot is a yellow-green gemstone that comes from the mineral olivine. Its name derives from the Arabic word "faridat," which means "gem." However, some scholars believe peridot gets its name ...