Carrollite (#3) on calcite with chalcopyrite
description: <p style="text-align: justify;">LOCALITY: Kamoya South Mine, Katanga Province, Democratic Republic of the Congo <br /><br />3" Across <br /><br />This is a reference grade specimen. The difference in value between this piece and the finer piece is around 1000 fold. <br /><br />Photo by Matthew Webb of Melbourne, Victoria, Australia</p>
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