Alleghanyite

Nesosilicates,humite group

Alleghanyite is a moderately rare humite mineral with formula Mn5(SiO4)2(OH)2, belonging to the nesosilicates class. In general its occurrences are related with metamorphic (metamorphosed) manganese deposits. The mineral is named after Alleghany County

Identification

Color of mineral

Brown

Pink

Grey

White

Mohs scale ( mineral hardness )

Density ( specific gravity )

1.756

1.78

1.792

Luster ( interacts light )

Vitreous

Crystal ( diaphaneity )

Monoclinic