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Protoanthophyllite Image

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Large Protoanthophyllite Image

Mineral: Protoanthophyllite: (Mg,Fe)7Si8O22(OH)2
Comments: Drill core showing white acicular crystalline aggregates of protoanthophyllite in matrix with a close up image on the right..
Location: Drill-core sample from the waste dump of the abandoned Takase chromite mine, Okayama Prefecture, Japan.
Scale: Core size 3 cm.
Copyright: © American Mineralogist
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