DescriptionSylvanite-fluorite, Last Dollar Mine, Cripple Creek.jpg Sylvanite (dark metallic - (Au,Ag)2Te4) and fluorite (purple - CaF2) from the Last Dollar Mine...
DescriptionSylvanite-fluorite (Cripple Creek Diatreme, Early Oligocene, 32 Ma; Last Dollar Mine, Cripple Creek Mining District, Colorado, USA) (21140950692).jpg...
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