There's a mineral so rare that only one specimen of it has ever ... an inclusion in a type of common volcanic rock called pegmatite, common in the region where the stone was found.

Did you ever go out with friends as a child and roam around the neighborhood, pretending to look for space rocks? Any time you found something that looked "out of the ordinary", you would come up with ...

Distinctive and rare rock crystals were moved over long distances by Early Neolithic Brits and were used to mark their burial sites, according to groundbreaking new archaeological research. Evidence ...

“They show a proud people during a period of difficult and often painful transition,” Rod Slemmons writes in “The Standing Rock Portraits,” a new book featuring Fiske’s work from the ear ...