Yeatmanite

yeatmanite

willemite

romeite

johnbaumite

Images

Formula: Zn6Mn2+9Sb5+2O12(SiO4)4
Antimonate
Specific gravity: 4.91
Hardness: 4
Streak: Light brown
Colour: Clove-brown, rose-pink
Common impurities: Fe
Environments

Metamorphic environments

Localities

The type locality is the Buckwheat pit, Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA. Here yeatmanite occurs as crystalline plates embedded in willemite and associated with sarkinite in thin veins cutting granular ore (AM 23.527-530, AM 51.1494-1500) in a metamorphosed, weathered zinc-manganese deposit (Webmin). Other associated minerals include calcite, diopside, andradite and romeite (HOM), and also johnbaumite (AM 65.1143-1145).

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