Mineral: Quartz, Dolomite
Locality: Ringenwechsel Mining District, Troi, District Schwaz, Inn Valley, North Tyrol, Tyrol/Tirol, Austria
Dimensions: FoV ca. 4 x 3 cm

Description: Quartz crystals are rare in this location, these ones (one double-ended) belong already to the larger ones! The black crusts consist most probably of Tenorite.

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