Geigerite Image

Hudson Institute of Mineralogy

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Geigerite

Large Geigerite Image

Mineral:

Geigerite: Mn5(AsO3OH)2(AsO4)2·10(H2O)

Comments:

Small, brownish grains of transparent geigerite (see lower image) in a silicous breccia.

Location:

Mt. Nero Mine, Borghetto di Vara, La Spieza, Italy.

Scale:

3.5 x 1.5 cm.

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