Calcite, Pyrite

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There were only a few specimens from this amazing find that appeared at Tucson - no clue whether that was all there will ever be or not. What you have is a BIG cluster of sharp rhombs of calcite, with this gorgeous sparkly pyrite of two tones, gold and copper, decorating the crystal faces. On the back, you can see the complex honeycombing caused by quartz forming casts over euhedral crystals of calcite, in some places with the calcite still inside, and hollow in others (but keeping the shape of the now-etched-away calcite crystals). very unusual specimens, I have not seen their like before from anywhere! 13.5 x 13.5 x 8.4cm