Barysilite

barysilite

willemite

axinite

hardystonite

Images

Formula: Pb₈Mn(Si₂O₇)₃
Sorosilicate (Si₂O₇ groups), manganese-bearing mineral
Specific gravity: 6.55 to 6.72
Hardness: 3
Streak: White
Colour: White to pinkish white, darkens on exposure to light
Solubility: Gelatinises in hydrochloric acid
Common impurities: Al,Fe,Zn,Mg,Ca
Environments

Metamorphic environments

Localities

At the type locality, the Harstigen Mine, Pajsberg, Persberg ore district, Filipstad, Värmland County, Sweden, barysilite occurs in iron ore (HOM).

At the Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA, barysilite occurs as thin fllms and veinlets in a metamorphosed zinc orebody, associated with garnet, willemite, axinite and hardystonite (HOM).

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