a Minerals

Rutile over Hematite from Novo Horizonte, Bahia, Brazil

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorph after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile pseudomorphs after Anatase from Cuiabá District, Minas Gerais, Brazil

Rutile pseudomorphs after Anatase from Cuiabá District, Minas Gerais, Brazil

Rutile pseudomorphs after Anatase on Quartz from Cuiabá District, Gouveia, Minas Gerais, Brazil

Rutile pseudomorphs after Brookite from Magnet Cove, Hot Spring County, Arkansas

Rutile twinned crystals from Graves Mountain, 19.5 km east of Washington, Lincoln County, Georgia

Rutile var. Cat's-Eye (two polished cabochons totaling 1.78 carats) from Sri Lanka

Rutile var. eightling-twin from Perovskite Hill, Magnet Cove, Hot Spring County, Arkansas

Rutile var. Knee-twin from Lynchburg area, Campbell County, Virginia

Rutile var. Knee-twin from Lac McGregor, Québec, Canada

Rutile var. Knee-twin from Parkesburg, Chester County, Pennsylvania

Rutile var. Menaccanite, Spinel, Chondrodite from Edenville, Orange County, New York

Rutile var. Nigrine (iron-rich rutile) from Liberia

Rutile var. Nigrine (iron-rich rutile) from Liberia

Rutile var. Nigrine (iron-rich rutile) from Liberia

Rutile var. Nigrine (iron-rich rutile) from Liberia

Rutile var. Nigrine (iron-rich rutile) from Liberia

Rutile var. Nigrine (iron-rich rutile) from Liberia

Rutile var. Strüverite from Slocum Beryl Prospect, East Hampton, Middlesex County, Connecticut

Rutile with Hematite from Novo Horizonte, Bahia, Brazil

Rutile with Hematite from Novo Horizonte, Bahia, Brazil

Rutile with Hematite from Novo Horizonte, Bahia, Brazil

Rutile with Hematite from Novo Horizonte, Bahia, Brazil

Rutile with Hematite on Quartz from Novo Horizonte, Bahia, Brazil

Rutile with Muscovite and Quartz from Onganja Mine, Seeis, Khomas, Namibia

Rutile with Quartz and Pyrophyllite from Graves Mountain, 19.5 km east of Washington, Lincoln County, Georgia

Rutile, Aegirine, Calcite from Little Dam Lake, Perkins, Québec, Canada

Rutile, Diaspore, Clinochlore from Chester Emery Mines, Hampden County, Massachusetts

Rutile, Siderite, Albite from Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada

Rutile, Siderite, Muscovite, Quartz from (Yates Brooks Farm?), Cleveland County, North Carolina

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

Safflorite from Cobalt District, Ontario, Canada

Safflorite and Skutterudite from Keeley-Frontier Mine, South Lorrain Township, Timiskaming District, Ontario, Canada

Sailaufite from Steinbruch Hartkoppe, Spessart Mountains, northwest Bavaria, Germany (Type Locality for Sailaufite)

Sainfeldite and Picropharmacolite from Gabe Gottes Mine, 40 M. Level, Saint Marie-aux-Mines, Alsace, France (Type Locality for Sainfeldite)

Salammoniac from Ravat, Zeravshan Range, Tajikistan

Salammoniac var. Paricutinite from Paricutin Volcano, Michoacan, Mexico (Type Locality for Paricutinite)

Saleeite, Metatorbernite, Phosphuranylite from Shinkolobwe Mine, 22 km WSW of Likasi, Katanga Copperbelt, Haut-Katanga Province, Democratic Republic of the Congo

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

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

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Lawson Peak, San Diego County, California

Samarskite-(Y) from Lawson Peak, San Diego County, California

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Penland, Spruce Pine District, Mitchell County, North Carolina

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Ilmen Mountains, Chelyabinsk Oblast', Russia (Type Locality for Samarskite-(Y))

Samarskite-(Y) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) from Fisher Quarry, Topsham, , Sagadahoc County, Maine

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

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) from Spinelli Quarry, South Glastonbury, Hartford County, Connecticut

Samarskite-(Y) with Columbite-(Fe) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-(Y) with Columbite-(Fe) from Divino de Ubá, Minas Gerais, Brazil

Samarskite-[Y] from Addey Claim, Spikebuck Gulch, Fremont County, Colorado

Samarskite-[Y] from Lawson Peak, San Diego County, California

Sampleite from Chuquicamata, Antofagasta, Chile (Type Locality for Sampleite)

Sampleite from Chuquicamata Mine, El Loa Province, Antofagasta Region, Chile (Type Locality for Sampleite)

Sanbornite and Gillespite from Mount Trumbull, near Incline, California (Type Locality for Sanbornite)

Sanbornite and Gillespite from Mount Trumbull, near Incline, California (Type Locality for Sanbornite)

Sanbornite and Gillespite from Mount Trumbull, near Incline, California (Type Locality for Sanbornite)

Sand composed of Almandine Garnet and Magnetite from concentrated deposits of heavy sand, Fire Island National Seashore, New York

Sanidine (Carlsbad-Law Twinned) from Kopriva, Kyustendil, Bulgaria

Sanidine (gem-grade) from Itrongay, Betroka Department, Tulear Province, Madagascar

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

Sanidine var. Moonstone with Aegirine from Mina La Pili, Carmago, east of Naica, Chihuahua, Mexico

Sanidine, Aegirine, Catapleiite from De-Mix Quarry, Mont Saint-Hilaire, Québec, Canada

Sanjuanite from Sierra Chica de Zonda, San Juan, Argentina (Type Locality for Sanjuanite)

Sanrománite (IMA2006-009) and Chalconatronite from Mina Santa Rosa, Iquique, Chile (Type Locality for Sanrománite)

Sanromanite and Juangodoyite from Mina Santa Rosa, Iquique Province, Chile (Type Locality for Sanromanite and Juangodoyite)

Santaclaraite from Pennsylvania Mine, east of Mt. Hamilton, Diablo Range, Santa Clara County, California (Type Locality for Santaclaraite)

Santaclaraite from Pennsylvania Mine, east of Mt. Hamilton, Diablo Range, Santa Clara County, California (Type Locality for Santaclaraite)

Santaclaraite from Pennsylvania Mine, east of Mt. Hamilton, Diablo Range, Santa Clara County, California (Type Locality for Santaclaraite)

Santarosasite (IMA 2007-013) from Mina Santa Rosa, Iquique, Tarapacá Region, Chile (Type Locality for Santarosasite)

Saponite pseudomorph after Stilbite from Thetford Mines, Québec, Canada

Sapphirine from Morafeno, Amboasary District, Anosy, Tulear Province, Madagascar

Sapphirine from Morafeno, Amboasary District, Anosy, Tulear Province, Madagascar

Sapphirine from Sri Lanka (formerly Ceylon)

Sapphirine from 20 km east of Hrongay, Fianarantsoa Province, Madagascar

Sapphirine from Harts Range, Northern Territory, Australia

Sapphirine from Nephton, Ontario, Canada

Sapphirine from Farafangana, Atsimo-Atsinanana, Madagascar

Sapphirine from Vangaindrano, Atsimo-Atsinanana, Madagascar

Sapphirine (twinned crystals) from Sri Lanka (formerly Ceylon)

Sapphirine in Calcite with Phlogopite from Itrongay, Betroka District, Tulear, Madagascar

Sapphirine in Phlogopite from south of Betroka, Tuléar Province, Madagascar

Sapphirine with Biotite from Itrongay, Tuléar, Madagascar

Sarabauite from Sarabau Mine, Kuching, Sarawak, Malaysia (Type Locality for Sarabauite)

Sarabauite from Sarabau Mine, Kuching, Sarawak, Malaysia (Type Locality for Sarabauite)

Sarabauite from Sarabau Mine, southwest of Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarabauite with Stibnite from Sarabau Mine, Kuching, Sarawak, Borneo, Malaysia (Type Locality for Sarabauite)

Sarcolite from Monte Somma, Vesuvius Volcano, Italy (Type Locality for Sarcolite)

Sarcolite from Monte Somma, Vesuvius, Campania, Italy (Type Locality for Sarcolite)

Sarkinite in green Willemite vein in Franklinite from Franklin, Sussex County, New Jersey (Type Locality for Franklinite)

Sarkinite on Hausmannite from Långban Mine, Filipstad, Värmland, Sweden (Type Locality for Sarkinite)

Sarkinite on Willemite-Franklinite-Calcite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey