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Arfvedsonite


Arfvedsonite : [Na][Na2][Fe2+4Fe3+][(OH)2|Si8O22]

Photo Copyright © Antonio Borrelli  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Ain Sefra, Saida Province, Algeria
Black elongated crystal of arfvedsonite measuring 80 mm on sienitic matrix. Photo and collection Antonio Borrelli.

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