AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Peru > Bournonite (cogwheel twins)

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Bournonite (cogwheel twins) from Pachapaqui District, Bolognesi Province, Ancash Department, Peru

 
Bournonite (cogwheel twins) from Pachapaqui District, Bolognesi Province, Ancash Department, Peru

Bournonite (cogwheel twins) from Pachapaqui District, Bolognesi Province, Ancash Department, Peru

Bournonite (cogwheel twins) from Pachapaqui District, Bolognesi Province, Ancash Department, Peru

DESCRIPTION:No. 60255
Mineral:Bournonite (cogwheel twins)
Locality:Pachapaqui District, Bolognesi Province, Ancash Department, Peru
Description:Lustrous dark-metallic bournonite crystals to 8 mm on metallic pyrite-rich matrix. The bournonite crystals are cyclic-twinned on {110} resulting in classic cogwheel habit. Ex. W. Keller #2017
Overall Size:4.5x3.5x2 cm
Crystals:1-8 mm
Status: Sold - Posted here for reference only
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