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Large group of bournonite crystals, brilliant, with complex and interpenetrated faces. They are accompanied by honey tone sphalerite crystals. The specimen is accompanied by a label that identifies it as from Saint-Laurent-Le-Minier (Sent Laurenç del Minièr), although it is more likely that it is from the Saguinede mine in Montdardier, very close to Saint-Laurent.
These tspecimens from Les Malines are very rare today. Twinned aggregates of bournonite crystals, partially covered by cube octahedral galena, pyrite and sphalerite. They are disposed on a matrix of baryte crystals. These are classics of the largest deposit of lead and zinc in France, whose exploitation dates back to Roman times.
Specimen formed by cyclic twins of bournonite, with gray metallic luster. Theyu have rounded faces and edges, good luster and is disposeded on a matrix of defined crystals of sphalerite toasted honey to black tones. A classic from this French mine.