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Gaudefroyite Image

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Large Gaudefroyite Image

Mineral: Gaudefroyite: Ca4Mn+++3-x(BO3)3(CO3)(O,OH)3
Comments: Dark gray, prismatic gaudefroyite with crystals to 1.5 cm.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa.
Scale: 7.8 x 4.2 cm.
Copyright: © John Veevaert
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