Cronstedtite

Fe3(SiFe)O5(OH)4

This sample of cronstedtite is displayed in the Smithsonian Museum of Natural History. Cronstedtite is a silicate mineral with the composition Fe3(SiFe)O5(OH)4. The sample at left is about 12 cm across and is from Herja, Crisana-Maramures, Romania. This sample is described as cronstedtite with siderite.

Mindat: Cronstedtite

Minerals
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