Mineral: Chalcedony var. chrysoprase
Locality: Szklary Chrysoprase Mine, Szklary, Gmina Zabkowice Slaskie, Zabkowice Slaskie, Lower Silesian Voivodeship, Poland
Dimensions: 4.8 x 3.5 cm

Description: A polished vein of vivid greenish-blue chrysoprase in an altered brown ultramafic rock. The color is due to tiny inclusions of Ni-bearing silicates.

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