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MINERALOGY

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Mineral: WITTICHENITE
Formula: Cu3BiS3
Crystal System: Orthorhombic
IMA Number: 1853
References: MM 43 (1979), 109; HB1 (1990); L 2 (2015), 11
Type Locality: Grube Neuglück, Wittichen, Schwarzwald, Baden-Württemberg, Germany
Wittichenite
Wittichenite (bluish grey), chalcopyrite (yellow needles), covellite (blue) in bornite
Långban, Sweden. Size 0.3 mm. Reflected light, open nicols.
The white mineral in the picture is native bismuth.
Photo © Kjell Gatedal, School of Mines and Metallurgy, Filipstad, Sweden.
See also: athena.unige.ch -> mineral pictures

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