Bournonite
Unknown Owner
If you have been searching for a reasonably priced fine example of Bournonite from Herodsfoot mine, this small cabinet specimen may just have your name on it! With a rich coverage of Bournonite crystals, many showing fine cogwheel form, scattered amongst characteristic ribs of micro-crystallised drusy Quartz, this is a great example of this highly prized mineral when from this locality. The Bournonite crystals form are broad thin blades up to 1 cm wide, often with sawtooth castellated edges known which led miners to name it cogwheel ore. The specimen comes with two dealer's labels, those of Richard Barstow and Rex Cook.
Product details
Species
SizeSmall Cabinet
Dimensions7.0 x 7.5 x 3.0 cm
Added on10/24/2024
Locality
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 01/2025 | Unknown Owner | $400.00 |
| — | 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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