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Post Tagged with: "sandstone"

Image credit: Cheryl Colan, "Meteor Crater" via Flickr. CC BY-NC 2.0

Rare Mineral Unearthed in 450 Million-Year-Old Meteorite Impact Crater

When researchers were exploring an ancient meteorite impact crater in Wisconsin, they found a very unusual mineral which had been discovered three¬†other places before. Such mineral, was known as reidite, a polymorph of the fairly strong gemstone¬†zircon to be generated when the zircon was exposed to quite high pressures. Scientists […]

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