Druzy Dioptase Crystal, Mineral Specimen from N’tola Mine, DR Congo
7 cm (2.7”) x 5.5 cm (2.1”)
Weight: 125 g
Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its luster is vitreous to sub-adamantine. Its formula is CuSiO3?H2O (also reported as CuSiO2(OH)2). It has a hardness of 5.
Nharo has been collecting mineral specimens in Southern Africa since 2002. We focus on bringing a wide variety of unusual, beautiful and energetic minerals back home with us!