Bournonite (“cogwheels”)
As recorded:
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
37mm x 20mm x 12mm
A hard to find cogwheel group of sharp, thick, blocky modified twinned crystals of Bournonite with excellent metallic luster. The piece displays well from a few angles. The stacked appearance of the crystals, combined with the bright luster makes this one of the more eye-catching smaller Bournonite
Mineral(s)
BournoniteNone listed
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