Dioptase

Facts

Chemical formula

CuSiO₃·H₂O

Crystal system

Trigonal

Mohs hardness

5.0

Elements in formula

Copper, Silicon, Oxygen, Hydrogen

Number of elements

4

IMA status

Grandfathered

Type locality

Karaganda Region

Named after

dia-

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q413369