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Tetraferriannite Image

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Large Tetraferriannite Image

Mineral: Tetraferriannite: K(Fe++,Mg)3(Fe+++,Al)Si3O10(OH)2
Comments: Brownish black crystal fragment of tetraferriannite showing the micaceous cleavage.
Location: Bancroft District, Hastings Co., Ontario, Canada.
Scale: Sample Size 1 cm.
Copyright: © Jeff Weissman / Photographic Guide to Mineral Species
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