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natural crystal cluster with high-Mn calcite
Lustrous peach color heulandite fan cluster with well-formed micro apophyllite crystals
Multiple hexagonal "sandwich" calcite crystals in a stacked formation on matrix
One double terminated crystal sits atop the cluster
Pyrite After Pyrrhotite with Calcite, Quartz & Boulangerite from Trepca Mine Complex, Kosovo tumbles natural crystal cluster with high-MnPyrite after pyrrhotite, with boulangerite, quartz, and calcite, from Trepca Mine Complex, Mitrovica, Kosovo. The calcite fluoresces orange with 365nm long wave UV light. Pyrite after pyrrhotite (psuedomorph). This specimen has druzy pyrite replacing the original platy or sheet like pyrrhotite crystals. The druzy pyrite sparkles brightly in any light. Size: 76 x 48 x 35 mm. 168 grams. Pyrite after pyrrhotite pseudomorph is a mineral specimen that
