fluorescent CALCITE - Harlowton, Wheatland County, Montana, USA - for sale
Iridescent metallic Bornite, Chalcopyrite, quartz, Butte, Butte District (Summit Valley District), Silver Bow County, Montana, USA

Minerals of Montana

Blue gray Corundum Sapphire crystals, Baddeleyite, Biotite mica, Bozeman Corundum Co. Mine, Gallatin Gateway, Gallatin County, Montana, USA, ex Rutgers Geology Museum
Pink Rhodochrosite, Quartz, Galena, Pyrite, Emma Mine (Ancient Mine; Black Chief Mine), Butte, Butte District (Summit Valley District), Silver Bow County, Montana, USA

Crystal Prospect