Bournonite, Siderite
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Bournonite 9 cm (with crystals to 3.2 cm) on siderite, from St. Pons, Barcellonette, Ubaye, France. Roberto Appiani photo.
Product details
SpeciesBournonite, Siderite
SizeMuseum
Dimensions900.0 cm
Added on02/13/2026
LocalityFrance, Provence-Alpes-Côte d'Azur, Saint-Pons
Publications
- Mineralogical Record Private Mineral Collections In Italy page 27
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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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