A truly breathtaking roseate spray of "cockscomb marcasite" from teh Old TriState District. This one has the most incredible iridescence and multicolored patina I have ever seen on a marcasite. It is a complete rosette, too,and displays magnificently. For an oft-dismissed species like marcasite, this is a real stunner. 6.9 x 5.9 x 3.2 cm
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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