Does Gypsum Have Value?
Does Gypsum Have Value? Does Gypsum have value? the United States What is special about gypsum? Color Colorless to white; may be yellow, tan, blue, pink, brown, reddish brown or gray due to impurities Streak White Luster Vitreous to silky, pearly, or waxy Diaphaneity Transparent to translucent Mohs Hardness 2 Is a gypsum a gemstone?