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Colonnata quarry, Apuane Alps, Carrara, Italy - Terminated deep brown/red sphalerite crystals of 0.3 cm. The crystals are well visible on the 3.5x3x3 cm matrix.
Calagio, Colonnata quarry, Apuane Alps, Carrara, Italy - A dark red sphalerite crystal shows up on the white marble. The sphalerite is 0.2 cm. Overall size of the specimen is 3.5x2.5x1 cm.
Calagio, Colonnata quarry, Apuane Alps, Carrara, Italy - A dark brown sphalerite crystal shows up on the white marble. The sphalerite is 0.25 cm. Overall size of the specimen is 3.5x2.5x1.5 cm.
Calagio, Colonnata quarry, Apuane Alps, Carrara, Italy - A dark brown sphalerite crystal shows up on the white marble. The sphalerite is 0.25 cm. Overall size of the specimen is 3.5x2.5x2 cm.