Galena, Sphalerite, Chalcopyrite, Dolomite
Skelton Mine, Picher Field, Ottawa County, Oklahoma, USA
Galena cubes to 1.1 cm, some with octahedral corner modifications, covering pink saddle-shaped dolomite crystals. The dolomites are intergrown with tetrahedrons of chalcopyrite, while small sphalerites occur on the outer surface of the galena; these accessory minerals do not cross substrates, suggesting that the dolomite with chalcopyrite was ...
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