Aggregate of very sharp Sphalerite (Marmatite variety) crystals with very well defined spinel law twins. The crystals are very bright and in excellent condition. With some botryodal Rhodochrosite coating the crystals. Specimen size: 6 cm x 4,5 cm. Watch the video below.
Trepca Mine, Trepca Valley, Kosovska Mitrovica, Kosovo.
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