This incredible bournonite specimen from Cornwall, England, is etched with history, originating from a pocket mined in the mid-1800s. Featuring lustrous, iridescent bournonite, this piece showcases the distinct cogwheel habit unique to this mineral species, a feature highly coveted by collectors. Complementing the bournonite is a spiky, lustrous quartz cluster, crowned with a large, perfectly terminated quartz crystal jutting from the top. A museum-quality piece, this strikingly aesthetic mineral specimen is guaranteed to elevate even the most impressive of collections.
Interesting Facts
Bournonite, also known as "cogwheel ore", is a rare lead-copper-antimony sulfide mineral distinguished by its wheel-like crystal formations.
Cornwall, England, was a major historical mining district in the 19th century, producing some of the world’s finest mineral specimens.
The iridescent sheen seen on this specimen is a result of oxidation over time, adding to its distinctive character and visual appeal.
Features
Origin: Cornwall, England
Material: Bournonite with Quartz
Condition: Exceptionally preserved, featuring unique cogwheel bournonite habit and sharp quartz terminations
Special Characteristics: Iridescent oxidation, spiky quartz cluster, large perfect termination at the top
Dimensions and Weight
Height        Length        Width        Weight
1.88"        2.25"        1.25"        115 g
Just in Astro West.