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Calcite


Mineral: Calcite, Malachite
Chemistry: CaCO3
Size: 71 mm
Owner: Mariusz Oleszczuk
Photographer: Mariusz Oleszczuk

A reddish-coloured (iron oxide rich ?) matrix is encrusted with colourless rhombohedral calcite crystals (to 1.5 mm) on which rest a very few sprays of malachite. 

 

Two later-formed, slightly flattened, translucent, honey-coloured calcite crystals (to 20 mm), rest on the crust of first generation colourless calcite.