Calcite with pyrite
description: <p style="text-align: justify;">LOCALITY: Daye Mine, Hubei Province, China <br /><br />6" across <br /><br />This is a curious calcite specimen that displays at least two generations of crystallized calcite. The "nail heads" have been encrusted by a later generation of colorless disc-shaped calcite crystals.  The front side of the specimen is primarily red and the reverse side is primarily white. </p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">Photo by Matthew Webb of Melbourne, Victoria, Australia</p>
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