Pyrite - Borieva mine, Madan, Bulgaria
Pyrite with rare pseudo-rhombohedral* habitus showing growth...
Pyrite group with rare pseudo-rhombohedral* habitus showing growth streaks, superb brilliance and overall good condition. Some associated microquartz.
* See article: Moëlo, Y.: Pseudo-cubic trigonal pyrite from the Madan Pb-Zn ore field (Rhodope Massif, Bulgaria): morphology and twinning, Eur. J. Mineral, 35, 333-346
3.5 x 3 x 2.2 cm
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Pyrite with rare pseudo-rhombohedral* habitus showing growth...
Group of pyrite with rare pseudo-rhombohedral* habitus showing...
Pyrite with rare pseudo-rhombohedral* habitus showing growth...