Bournonite
Unknown Owner
This small but instantly recognizable specimen is a true Cornish classic. Forming a network of 'blades' of open textured Quartz upon these, and embedded within a few, are 'cogwheel'-like gun-metal grey Bournonite crystals. There is damage to a few of the crystals (which is reflected in the price) but many are really nicely formed examples of these jagged-edged twinned bladed crystals. The largest complete Bournonite crystal reaches 8 mm in length. This miniature piece displays a fine old style patina which fits with the fact that most of the Bournonite specimens from Herodsfoot mine came out during the 1860s and 1870s.
Product details
Species
SizeSmall Cabinet
Dimensions5.4 x 3.5 x 3.5 cm
Added on10/08/2025
Locality
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 10/2025 | Unknown Owner | $350.00 |
| — | Crystal Classics | 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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