View into a high-pressure diamond cell of the mineral called hydrous ringwoodite (blue crystal). The crystal measures approximately 0.1 mm across and contains around one weight percent H2O in its ...

Like, say, a crystal that grows best on dead things. Vivianite is a rare phosphate mineral that is typically ... which ...

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 ...

Pennsylvania may not be the first place that comes to mind when thinking of gemstone mining, but the Keystone State has a surprising diversity of beautiful natural gemstones that can be found across ...