Grunerite Image

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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.

For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an

Grunerite

Large Grunerite Image

Mineral:

Grunerite: [ ]Fe++7Si8O22(OH)2

Comments:

Olive green fibrous crystal aggregates of grunerite in rock matrix.

Location:

Michigamme, Iron County, Michigan, USA.

Scale:

See Photo.

Copyright:

© Jeff Weissman / Photographic Guide to Mineral Species

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