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Bournonite

$750.00

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The ArkenstoneFeatured
3,403 for sale·Member since 2026
A thick tabular, brilliant metallic cogwheel crystal of bournonite from the famed Yaogangxian mine in China. This impressive, large, single crystal exhibits striated prism faces along with pinacoid and pyramid faces that display subtle growth hillocks adding to the reflectivity. Minor edge rubbing and local patches of less reflective areas that are inconsequential to this great crystal. Ex. Paul Zerfass collection with label.

Product details

SpeciesBournonite
SizeMiniature
Dimensions3.5 x 2.8 x 2.4 cm
Listed on10/23/2024
LocalityChina, Hunan, Yaogangxian Mine
SKUMIX18C-23

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.
Bournonite
Regional guide
Bournonite from Yaogangxian Mine, China
from Yaogangxian Mine, China: silvery gray, sharply crystallized crystals with twinning; part of a rich hydrothermal assemblage prized by collectors.