Chalcopyrite Coating Calcite

Unknown Owner

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Very aesthetic group of chalcopyrite coated calcite crystals, with the largest crystal being more than 4cm across. The chalcopyrite appears to have preferentially coated only certain faces on the calcites. In addition, it appears that secondary calcite growth may have also covered some of the chalcopyrite. Slight contacting along some of the crystal edges can be observed but is forgiveable given the size and age and overall beauty, I think! A couple of old collection labels are included.