Very Rare White Cryolite 925 Silver Stud Earrings from Greenland - 0.6" - 1.29 Grams minerals and reported Mohs hardness varies

and reported Mohs hardness varies from 5

The composition of Helenite includes Si - 60

10 Carats (2

A very cool brown Monazite-CE crystal from Brazil

This is a very nice soft apple-green luminous Prehnite crystal pendant set in sterling silver from Mali

Very Rare White Cryolite 925 Silver Stud Earrings from Greenland - 0.6" - 1.29 Grams minerals and reported Mohs hardness variesThis is white Cryolite with pearly luster 925 silver stud earrings from Greenland. Cryolite, or sodium aluminum fluoride (Na3AlF6), consists of 12. 85 percent aluminum, 54. 30 percent fluorine, and 32. 85 percent sodium. Cryolite is not only ice like in appearance; its name, which stems from the Greek words kryos, or "ice," and lithos, or "stone," means "ice stone." Greenland's indigenous Inuit called cryolite "the ice that never melts." It is rare,