| Cotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA | β Actinolite, β Albite, β Amazonite, β Anglesite, β Anorthite, β Anthophyllite, β Apatite, β Azurite, β Biotite, β Calcite, β Chalcopyrite, β Chlorite Group, β Chrysocolla, β Clinohumite, β Clinozoisite, β Cordierite, β Covellite, β Cuprite, β Diopside, β Epidote, β Fluorite, β Forsterite, β Gahnite, β Galena, β Garnet Group, β Goethite, β Gypsum, β Hematite, Hornblende, β Labradorite, β Leucoxene, β Limonite, β Magnetite, β Malachite, β Marcasite, β Microcline, β Molybdenite, β Muscovite, β Oligoclase, β Phlogopite, β Pyrite, β Pyrrhotite, β Quartz, β Scapolite, β Scheelite, β Sericite, β Serpentine Subgroup, β Siderite, β Sillimanite, β Sphalerite, β Strontianite, β Titanite, β Tourmaline, β Zircon, β Zoisite |
