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specimen video

Bournonite

Unknown Owner
Nice Bournonite specimen coming from a recent find in the Canutillos mine. It comprises a metalic silver twinned crystal of Bournonite with very well defined faces and edges and with the classic cogwheel cyclic twinning. The piece is in excellent condition, without damage. Watch video.

Product details

Species
BournoniteAbout Bournonite →
SizeSmall Cabinet
Dimensions4.5 x 7.0 cm
Added on06/16/2025
Locality
Bolivia, Potosí, Machacamarca mining district

Known provenance

DateCollectorAcquisition price
06/2025Unknown OwnerNot disclosed
—MChMineralsNot disclosed

Learn more

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.
Regional guide
Bournonite from Machacamarca mining district
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