Pyrosmalite

(Fe,Mn)8Si6O15 (OH,Cl)10

Pyrosmalite is a silicate of manganese and iron and also contains chlorine. Its composition is (Fe,Mn)8Si6O15(OH,Cl)10.

This sample is on display in the Smithsonian Museum of Natural History. Its source is listed as the Bjelke mine, Nordmark, Varmland, Sweden. The size of the sample is about 5x5 cm.

Mindat: Pyrosmalite

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