Sphalerite
Aliva, Picos de Europa, Cantabria, Spain
4.8 x 4 x 3.5 cm
Mostly complete complex and gemmy 3 cm crystal of sphalerite perched on milky white dolomite. The crystal has been lightly etched in some locations to produce a matted luster. When back lit however, the gem nature of the crystal is readily evident. The back side of the crystal has contact impressions where it grew against an adjacent crystal.

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