Single Bournonite Crystal on Pyrite
Single Bournonite Crystal on Pyrite from Mina Machacamarca, Viboras section, near Colavi, Potosi, Bolivia
Collection John Betts - Fine Minerals
Description Lustrous gray-metallic Bournonite crystals, repeatedly twinned, resulting in a classic cogwheel formation 12 mm across, on yellow-metallic Pyrite crystals to 2 mm.
Locality Mina Machacamarca, Viboras section, near Colavi, Potosi, Bolivia
Dimensions 6 x 4 x 3 cm.
Specimen Grade B
Photograph © www.johnbetts-fineminerals.com - All Rights Reserved.

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