• Dolomite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Large plate of intergrown, pearly, rhombohedral dolomite crystals from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Siderite on chalcopyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Complex intergrowths of siderite discs on tarnished chalcopyrite from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Galena, sphalerite, and dolomite/ankerite and minor pyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Metallic-gray galena cubes and small shiny black sphalerite crystals mixed with zoned white rhombohedrons of dolomite covered by an outer layer of tan ankerite. Minor pyrite crystals are also scattered over the specimen ...
      • Quartz 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Plate of quartz crystals from the Ground Hog mine, Gilman mining district, Eagle County, Colorado.
      • Chalcopyrite with minor tetrahedrite-tennantite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        A large plate of intergrown chalcopyrite crystals with very minor tetrahedrite-tennantite from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Fluorapatite, chalcopyrite, and sphalerite on pyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Squatty, glassy prisms of fluorapatite scattered in among chalcopyrite and sphalerite crystals. This mineral specimen is from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Pyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        A cluster of pyrite crystals exhibiting the pyritohedral crystal form. Mineral specimen is from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Pyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Intergrowth of bright shiny, striated cubes of pyrite from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Rhodochrosite on sphalerite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        This mineral specimen is from the Eagle mine in the Gilman mining district, Eagle County, Colorado, and shows intergrowths of pink, flattened (discoidal), rhombohedral crystals of rhodochrosite on black sphalerite crystals.
      • Siderite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        A large plate of interlocking, flattened (disc-shaped) rhombohedral, tan siderite crystals from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Calcite stalactite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Pearly, off-white stalactite of calcite from the Iron Mask mine, Gilman mining district, Eagle County, Colorado.
      • Pyrite with dolomite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Tiny, tarnished pyrite with sphalerite on pearly crystals of dolomite. This mineral specimen is from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Sphalerite variety schalenblende 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Plate of interlocking spheres (botyroidal growth) of sphalerite, referred to as "schalenblende", from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Pyrite with sphalerite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Intergrowth of pyrite crystals exhibiting cubic and pyritohedral crystal forms with shiny, jet-black sphalerite crystals from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Sphalerite with siderite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Lustrous jet black sphalerite crystals with tan siderite from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • New Jersey Zinc Co. souvenir ingot 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Miniature zinc ingot cast by New Jersey Zinc Co., for sale to tourists as a souvenir.
      • Pyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        A single, highly modified cubic crystal from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Siderite on sphalerite on pyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Small discs of siderite, on black sphalerite crystals, on pyrite. This mineral specimen is from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Chalcopyrite on pyrite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Rough, dull golden chalcopyrite crystals on bright brassy pyrite crystals. This mineral specimen is from the Eagle mine, Gilman mining district, Eagle County, Colorado.
      • Pyrite, pseudomorph after marcasite with pyrite and sphalerite 

        Author(s):Raines, Ed; Mines Museum of Earth Science
        Date:2018
        Format:born digital; digital photographs
        Several large clusters of intergrown (former) marcasite crystals that have been replaced by pyrite--on pyrite, on sphalerite. This mineral specimen is from the Eagle mine, Gilman mining district, Eagle County, Colorado.