Bournonite
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Very well-formed, intact and very shiny complex crystal perched on the end of a doubly terminated quartz crystal, and pierced by three other smaller quartz crystals. The cogwheel characteristic of bournonite appears very well on the periphery of the crystal. The specimen has an astonishing appearance reminiscent of a lollipop.
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Species
Added on11/10/2024
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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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