Bournonite
Unknown Owner
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This fine specimen features sharp, steel-grey color, lustrous, rather thick blade of Bournonite with slight "cogwheel" twinning which is sitting atop micro grey Quartz matrix. The Bournonite crystal measures 4.2 x 4.0 cm.
Product details
SpeciesBournonite
SizeMiniature
Dimensions4.0 x 2.4 x 2.8 cm
Added on10/23/2024
LocalityBolivia, Potosí, Machacamarca Mine
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2024 | Unknown Owner | Not disclosed |
| — | The Arkenstone | Not disclosed |
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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.Regional guide
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