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RM2010   Bournonite and sphalerite

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.

Size: 8.0 x 4.8 x 2.0 cm.
Main crystal: 1.5 cm.
Col. Manchion.
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