| 7ddmwe ((IRIDESCENT CHALCOPYRITE on QUARTZ after CALCITE)), Reynolds County, Missouri, 12 x 9 x 5.5 cm, Cabinet, | |
 | Here is an interesting specimen in two ways. First is the Chalcopyrite with a beautiful purple, blue, and magenta iridescent color. Also with more careful inspection is that Quartz druze are actually empty casts after Calcite which once filled them. The Calcite faces can be seen inside most of the casts. |
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