Tephroite

Facts

Chemical formula

Mn²⁺₂SiO₄

Crystal system

Orthorhombic

Mohs hardness

6.0

Elements in formula

Manganese, Silicon, Oxygen

Number of elements

3

IMA status

Grandfathered

Type locality

Sterling Hill

Named after

ash

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q424367