Mineral: Calcite on Quartz (variety quartz amethyst)
Locality: Artigas Department, Uruguay
Dimensions: 30,0 x 20,0 x 30,0 cm

Description: Main crystal size: 28,0 cm Large, intact, translucent yellow scalenohedron, the base of which is surrounded by several intact amethyst points MIM number 682 Photographer: Augustin de Valence (Aïnu)

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