Calcite on sphalerite
description: <p style="text-align: justify;">LOCALITY: Elmwood Mine, near Carthage, Smith County, Tennessee, United States <br /><br />1 7/8" Across <br /><br />This fine quality calcite crystal twin on a matrix of very dark brown sphalerite was bought from Dan Weinrich in October 2018. <br /><br />Photo by Matthew Webb of Melbourne, Victoria, Australia</p>
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