11hedwa ((PYRITE on CALCITE)), $10 MINIMUM BID, Sweetwater Mine, Reynolds County, Missouri, 4 x 2.5 x 1.5 cm, Miniature | |
Here is a terminated Calcite from the Sweetwater Mine with neat Pyrite including Pyrite inclusions. The form looks more like Marcasite. Checking on mindat.org I found two somewhat similar forms under Pyrite. Description says a dimorphic form starting out as Marcasite and ending up as Pyrite. This is the only one that I have seen. |