description: <p style="text-align: justify;">LOCALITY: Linwood Mine, Buffalo, Scott County, Iowa, United States   <br /><br />4" across <br /><br />This piece displays two generations of calcite crystal growth. This is evident since pyrite encrusted "dog tooth"-shaped phantom calcite crystals are inside the more complex, lustrous, colorless gemmy crystals of calcite as seen in the photo.</p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">This piece was traded from Evan Jones during a visit to Phoenix, Arizona in late 2012.  </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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