Chesterite Magnetite Image

Hudson Institute of Mineralogy

Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.

Exceptional Minerals features excellent, high quality mineral specimens for sale. We also have a weekly Best Offer Mineral Auction.

John Betts - Fine Minerals, New York. Dealers of Fine Minerals and Natural Crystal Clusters since 1989. We buy rock collections, we buy gem collections, we buy mineral collections.

Chesterite, Magnetite

Large Chesterite Image

Mineral:

Chesterite: (Mg,Fe++)17Si20O54(OH)6
Magnetite: Fe++Fe+++2O4

Comments:

Green platy chesterite in black, metallic magnetite.

Location:

Near Missoula, Missoula County, Montana, USA.

Scale:

See Photo.

Copyright:

© Jeff Weissman / Photographic Guide to Mineral Species

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