Here’s how you can get more Flawless Fluorite in Heartopia to brighten up your spaces.

IN connexion with attempts to incorporate more divalent (rather than trivalent) samarium into calcium fluoride single crystals, and thereby make them more efficient optical maser materials 1, we have ...

NORTH ADAMS — Enter Larry Michon's accounting office and it immediately becomes clear what he does on the weekends. Crystal clear. Garnets, amethyst, fluorite and quartz are a few of the minerals that ...