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Calcite, (on Mottramite)


Mineral: Calcite, Mottramite
Chemistry: CaCO3
Size: 80 mm
Owner: Mariusz Oleszczuk
Photographer: Mariusz Oleszczuk

An unusual specimen comprising a coarsely crystalline aggregate of colourless-white calcite, almost completely encrusting a hollow tube of mottramite (?) which is best seen at the base of the structure (see Photograph 2; FOV 30 mm).