Bournonite - image 1

Bournonite

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Product details

SpeciesBournonite
SizeMiniature
Dimensions3.5 x 3.5 cm
Added on10/24/2026

Current owner

Heritage Auctions

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Bournonite
Mineral guide
Learn about Bournonite
steel-gray to black sulfosalt famed for cogwheel twinning and metallic luster; prized by collectors for iconic gears and historic localities.