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RM1204   Boulangerite (plumosite) with sphalerite and arsenopyrite

Specimen with a good size from this classic Kosovar mine. A matrix formed by crystals of arsenopyrite, twinned sphalerite, pyrite and some quartz. On them have grown nice aggregates of boulangerite showing a metallic gray fine-acicular crystals, but may have other sulphides of the same group, which are called plumosite. A very brilliant and aesthetic specimen.

Size: 8.5 x 7.8 x 5.2 cm.
Main crystal: 22 mm. glob. aggr.
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