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Ferroglaucophane


Ferroglaucophane : [ ][Na2][Fe2+3Al2][(OH)2|Si8O22]

Photo Copyright © Giovanni Fraccaro  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Herin mine, Champdepraz, Aosta Valley, Italy
Ferroglaucophane crystals (size 14-26 mm) from Herin mine (TL).
Collection and photo Giovanni Fraccaro.

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