6
Pyrite
3 crystals in the shape of perfect dodecahedrons, smooth and very lustrous, on a matrix of graphite covered on all sides by small crystals of white calcite; the pyrite faces are irregular pentagons that clearly illustrate the false symmetry (class 5) of this species.
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Known provenance
Species and Locality Wiki Pages
Collectors of Pyrite from Merelani Hills
Pyrite from Tanzania Sales Data
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