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Betpakdalite-CaMg : [Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)]
minID: G9D-TAQ

Photo Copyright © Rruff Project  - This image is copyrighted. Unauthorized reproduction prohibited.

RRUFF Project Specimen ID: R060242.2

Sample Description: Microprobe Fragment

Measured Chemistry: Mg1.00Ca2.00Fe3+3.00(Mo7.89W0.11)Σ=8((As1.94P0.06)Σ=1O4)2O28(OH)·23H2O ; H not mesured but estimated by difference and stoichiometry; the lighter areas are richer in W.

Locality: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia

Source: William W. Pinch

Yellow short prismatic crystals

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Photo added: 1st Jun 2010

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