Mindat Short Description
Bright emerald-green modified rhombohedral usually elongated crystals, usually less than 0.75 cm in size.
Geoscience Ontology Status Notes
Haüy R J (1797) Dioptase (N.N.), c'est-à-dire, visible au travers, Journal des Mines 5, 274-275
IMA Formula (from Mindat)
CuSiO3 · H2O
RRUFF Formula (from Geoscience Ontology)
Cu2+SiO3·H2O