Gypsum
Gypsum crystals in a "desert rose" cluster. Photo courtesy of liveauctioneers.com and Michaan's Auctions.
Article: What is Gemstone Luster?
Credit: Michaan’s Auctions
Gemstone | Gypsum |
Natural or man made | Natural |
Gem State | Specimen |
Color | White |
Transparency | Opaque |