Minerals from Rocky Mountain States, USA

Rhodochrosite on Quartz from Silverton, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from Hedgehog Pocket, Sweet Home Mine, Alma District, Park County, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz from Black Pine Mine, Flint Creek Valley, Granite County, Montana

Rhodochrosite on Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz from Silverton Mining District, San Juan County, Colorado

Rhodochrosite on Quartz from Ouray District, San Miguel County, Colorado

Rhodochrosite on Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz from Grizzly Bear Mine, Ouray District, Ouray County, Colorado

Rhodochrosite on Quartz from Sweet Home Mine, Hedgehog Pocket, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz from Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz from Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz from American Tunnel, Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz from Grizzly Bear Mine, Ouray District, Ouray County, Colorado

Rhodochrosite on Quartz from Camp Bird Mine, Ouray County, Colorado

Rhodochrosite on Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz and Pyrite from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz and Pyrite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Quartz with Fluorite from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz with minor Pyrite from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz with minor Pyrite from Silverton District, San Juan County, Colorado

Rhodochrosite on Quartz with minor Sphalerite and Pyrite from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Quartz with Pyrite from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite on Sphalerite with Pyrite from Eagle Mine, Gilman District, Eagle County, Colorado

Rhodochrosite on Tetrahedrite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite on Tetrahedrite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite over Quartz from Butte Mining District, Summit Valley, Silver Bow County, Montana

Rhodochrosite over Quartz and Pyrite from Emma Mine, Butte District, Summit Valley, Silver Bow County, Montana

Rhodochrosite with Calcite from Idarado Mine, Ouray District, San Miguel County, Colorado

Rhodochrosite with Chalcopyrite from Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite with Chalcopyrite from Emma Mine, Butte District, Silver Bow County, Montana

Rhodochrosite with Chalcopyrite from Champion Mine, Lake City, Hinsdale County, Colorado

Rhodochrosite with Chalcopyrite from Emma Mine, Butte District, Silver Bow County, Montana

Rhodochrosite with Fluorite from Henderson Mine, Clear Creek County, Colorado

Rhodochrosite with Fluorite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Fluorite and Fluorapatite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Fluorite, Pyrite, Quartz from Moose Mine, Gilpin County, Colorado

Rhodochrosite with minor Pyrite from Silverton District, San Juan County, Colorado

Rhodochrosite with Pyrite from John Reed Mine, Alicante District, Lake County, Colorado

Rhodochrosite with Pyrite from Butte Mining District, Summit Valley, Silver Bow County, Montana

Rhodochrosite with Pyrite from Lexington Mine, Butte Mining District, Summit Valley, Silver Bow County, Montana

Rhodochrosite with Pyrite from Emma Mine, Butte Mining District, Summit Valley, Silver Bow County, Montana

Rhodochrosite with Pyrite from Silverton District, San Juan County, Colorado

Rhodochrosite with Pyrite and Quartz from American Tunnel, Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite with Pyrite and Quartz from Emma Mine, Butte, Silver Bow County, Montana

Rhodochrosite with Pyrite and Sphalerite from Idarado Mine, Ouray District, San Miguel County, Colorado

Rhodochrosite with Quartz from Silverton Mining District, San Juan County, Colorado

Rhodochrosite with Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite with Quartz from Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite with Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz from Silverton District, San Juan County, Colorado

Rhodochrosite with Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz and Chalcopyrite from Emma Mine, Butte District, Silver Bow County, Montana

Rhodochrosite with Quartz and Dolomite from John Reed Mine, Leadville District, Lake County, Colorado

Rhodochrosite with Quartz and Pyrite from Sweet Home Mine, Hedgehog Pocket, Main Stope Drift, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz and Pyrite from Butte Mining District, Summit Valley, Silver Bow County, Montana

Rhodochrosite with Quartz and Pyrite from Emma Mine, Butte Mining District, Summit Valley, Silver Bow County, Montana

Rhodochrosite with Quartz and Pyrite from Emma Mine, Butte Mining District, Summit Valley, Silver Bow County, Montana

Rhodochrosite with Quartz and Sphalerite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz and Tetrahedrite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz, Galena, Pyrite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz, Sphalerite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Quartz, Sphalerite, Chalcopyrite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Sphalerite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite with Sphalerite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Fluorite, Pyrite, Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Fluorite, Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Galena and Sphalerite from Julia Fisk Mine, Leadville District, Lake County, Colorado

Rhodochrosite, Pyrite, Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Pyrite, Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Pyrite, Quartz from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Quartz, Pyrite from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Quartz, Pyrite from Sweet Home Mine, New Watercourse Raise, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Quartz, Pyrite from Lexington Mine, Butte District, Summit Valley, Silver Bow County, Montana

Rhodochrosite, Quartz, Pyrite, Fluorite from Sweet Home Mine, 04-05 Pocket, Watercouse Raise, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Quartz, Pyrite, Galena from Sweet Home Mine, Buckskin Gulch, Alma District, Park County, Colorado

Rhodochrosite, Quartz, Sphalerite from Julie Fisk Mine, Leadville District, Lake County, Colorado

Rhodochrosite, Quartz, Sphalerite from Grizzly Bear Mine, Ouray District, Ouray County, Colorado

Rhodochrosite, Quartz, Sphalerite from Julie Fisk Mine, Leadville District, Lake County, Colorado

Rhodochrosite, Quartz, Sphalerite from Sunnyside Mine, Eureka District, San Juan County, Colorado

Rhodochrosite, Quartz, Sphalerite, Fluorite, Pyrite from Hedgehog Pocket, Sweet Home Mine, Alma District, Park County, Colorado

Rhodochrosite, Quartz, Sphalerite, Pyrite from Silverton District, San Juan County, Colorado

Rhodochrosite, Quartz, Sphalerite, Pyrite from Silverton District, San Juan County, Colorado

Rhodochrosite, Sphalerite, Quartz from Brooklyn Mine, Silverton District, San Juan County, Colorado

Rhodochrosite, Tetrahedrite, Quartz from Tanner Boy Mine, Alma District, Park City, Colorado

Rhodonite from Lexington Mine, Butte Mining District, Summit Valley, Silver Bow County, Montana

Römerite, Coquimbite, Halotrichite from Dexter No. 7 Mine, San Rafael Swell, Emery County, Utah

Römerite, Coquimbite, Halotrichite, Voltaite from Dexter No. 7 Mine, San Rafael Swell, Emery County, Utah

Samarskite-(Y) from Brown Derby Mine, Gunnison County, Colorado

Samarskite-(Y) from Coaldale, Fremont County, Colorado

Samarskite-(Y) from Burroughs Mine, Clear Creek, Jefferson County, Colorado

Samarskite-(Y) from Burroughs Mine, Clear Creek, Jefferson County, Colorado

Sanidine Feldspar in granite matrix from Howard's Dike, Willow Creek, Colorado

Sanidine phenocrysts in trachyte porphyry from City Creek Canyon, Salt Lake City, Salt Lake County, Utah

Scheelite from Camp Bird Mine, 7850' stope, 5 Level, King Ore Shoot, Camp Bird Vein, Ouray County, Colorado

Scheelite from Camp Bird Mine, 7850' stope, 5 Level, King Ore Shoot, Camp Bird Vein, Ouray County, Colorado

Scheelite from Camp Bird Mine, 7850' stope, 5 Level, King Ore Shoot, Camp Bird Vein, Ouray County, Colorado

Scheelite from Camp Bird Mine, 7850' stope, 5 Level, King Ore Shoot, Camp Bird Vein, Ouray County, Colorado

Scheelite embedded in Fluorite from Camp Bird Mine, 5 Level, Ouray County, Colorado

Scheelite on Fluorite with Quartz, Chalcopyrite from East Camp Bird Mine, Level 5, Ouray County, Colorado

Scheelite on Quartz from Camp Bird Mine, Ouray County, Colorado

Scheelite on Quartz from East Camp Bird Mine, Ouray, Ouray County, Colorado

Schorl Tourmaline from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline (set of seven terminated crystals) from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline in Quartz from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline in Quartz from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline in Quartz from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline in Quartz from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schorl Tourmaline with minor Quartz from Bald Mountain road cut, 9200' elevation, north of Idaho Springs, Clear Creek County, Colorado

Schröckingerite from Wamsutter, Sweetwater County, Wyoming

Schröckingerite with Gypsum from Lost Creek, north of Wamsutter, Sweetwater County, Wyoming

Shortite from FMC Westvaco Mine, Green River Formation, west of Green River, Sweetwater County, Wyoming

Shortite in Shale from FMC Westvaco Mine, Green River Formation, west of Green River, Sweetwater County, Wyoming (Type Locality for Shortite)

Shortite in Shale from FMC Westvaco Mine, Green River Formation, west of Green River, Sweetwater County, Wyoming (Type Locality for Shortite)

Shortite in shale from FMC Westvaco Mine, Green River Formation, west of Green River, Sweetwater County, Wyoming

Shortite in shale from FMC Westvaco Mine, Green River Formation, west of Green River, Sweetwater County, Wyoming

Siderite from Gilman, Eagle County, Colorado

Siderite and Sphalerite from Eagle Mine, Gilman District, Eagle County, Colorado

Siderite and Sphalerite var. Marmatite from Gilman Mining District, Eagle County, Colorado

Siderite on Galena from Silverton Mining District, San Juan County, Colorado

Siderite on Pyrite from Gilman District, Eagle County, Colorado

Siderite on Sphalerite and Pyrite from Eagle Mine, Gilman District, Eagle County, Colorado

Siderite on Sphalerite var. Marmatite from Eagle Mine, Gilman District, Eagle County, Colorado

Siderite over Pyrite from Eagle Mine, Gilman, Eagle County, Colorado

Siderite stalactites with Galena from White Raven Mine, Ward, Boulder County, Colorado

Siderite with Pyrite from Eagle Mine, Gilman District, Eagle County, Colorado