Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Simpsonite: Al4(Ta,Nb)3O13(OH)
Comments: Translucent pale pink simpsonite crystal fragment. Location: Alto do Giz, Equidor, Rio Grande do Sol, Brazil. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sincosite: Ca(V++++O)2(PO4)2·5(H2O) Minyulite: KAl2(PO4)2(OH,F)·4(H2O)
Comments: Pale greenish white acicular radial sprays of minyulite to 8mm with small, green, tabular sincosite. Location: Ross Hannibal mine, Lawrence County, South Dakota. Scale: Picture size 2 cm. © Tom Loomis / Dakota Matrix
Sincosite: Ca(V++++O)2(PO4)2·5(H2O)
Comments: Tabular single crystals of sincosite to 2 mm on drusy quartz. Location: Ross Hannibal Mine, Lawrence Co., South Dakota, USA. Scale: Picture size 1.5 cm. © Tom Loomis / Dakota Matrix
Sinhalite: MgAlBO4
Comments: Crystalline sinhalite in white marble. Location: Amity, near Warwick, Orange County, New York, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sinjarite: CaCl2·2(H2O)
Comments: Sinjarite specimen sealed in a glass capsule. Location: Cheleken, Caspian Sea, Turkmenistan. Scale: Grid Size 1 mm. © Sergey Vasiliev / Systematic Mineralogy
Sinkankasite: H2MnAl(PO4)2(OH)·6(H2O)
Comments: White crystalline spray of acicular sinkankasite to 1mm on matrix. Location: Barker mine, Keystone, Pennington County, South Dakota, USA. Scale: Picture size 5 mm. © Tom Loomis / Dakota Matrix
Sinnerite: Cu6As4S9
Comments: Blackish-grey aggregate of sinnerite crystals with red realgar on white dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture high 6 mm. © Walter Gabriel
Sitinakite: Na2K(Ti,Nb)4O4(SiO4)2(O,OH)·4(H2O)
Comments: Beige translucent crudely formed sitinakite (arrow) crystal with white natrolite and dark, acicular aegirine. Location: Mount Kukisvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sjogrenite: Mg6Fe+++2(CO3)(OH)16·4(H2O)
Comments: Red-brown sjogrenite crust on serpentinite rock. Location: Fort Point, San Francisco County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Skaergaardite: CuPd
Comments: (e) A euhedral crystal of skaergaardite exhibiting the form cube {100} (possibly distorted) included in a bornite-chalcocite i(BN+CC) grain. (f) bornite (BN)+ chalcopyrite (CP) microglobule with a skaergaardite cube with rounded edges. (MinMag 68:615). Location: Drill core taken from the Skaergaard intrusion, Kangerdlugssuaq area, East Greenland. Scale: See Image. © Mineralogical Magazine
Skinnerite: Cu3SbS3
Comments: Dark gray skinnerite on matrix. Location: Bankove, Kosice, Vychodoslovensky, Slovakia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Skippenite: Bi2Se2(Te,S)
Comments: SEM image of skippenite (s) crystal containing an inclusion of Bi2(Se,Te,S)2 (a) Bi 2(Se,S)2 (b) associated with clausthalite and chalcopyrite penetrates along watkinsonite (w) grain boundaries. Location: U vein-typed eposits locatedi n the Otish Mountains basin (Quebec), Canada. (CanMin, v25:625). Scale: Scale Bar 40 µm. © Canadian Mineralogist
Sklodowskite: (H3O)2Mg(UO2)2(SiO4)2·4(H2O)
Comments: Yellow cotton-ball spray of acicular sklodowskite. Location: Shinkolobwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Sklodowskite: (H3O)2Mg(UO2)2(SiO4)2·4(H2O) Kasolite: Pb(UO2)SiO4·(H2O)
Comments: Greenish yellow, acicular sklodowskite crystals and yellow, bladed kasolite crystals. Location: Kambove, (Kakanda) Mine, Katanga District, Shaba (Katanga), Republic of the Congo, (Zaïre). Scale: Picture size 1 cm. © Paul M. Schumacher
Skutterudite: (Co,Ni)As3-x Erythrite: Co3(AsO4)2·8(H2O)
Comments: Erythrite crystal on massive skutterudite. Location: Bou Azzer, Morocco. Scale: Crystal size 1.5 cm. © John Veevaert
Skutterudite: (Co,Ni)As3-x
Comments: Cubic crystals of Skutterudite on matrix. Location: Bou Azzer, Anti-Atlas Mountains, Morrocco. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Comments: Bright, untarnished, metallic crystals of skutterudite up to 1 cm. Location: Bou Azzer, Morocco. Scale: Picture size 3 cm. © Sandro Maggia/Minernet.it
Slavikite: NaMg2Fe+++5(SO4)7(OH)6·33(H2O)
Comments: Bubbly slavikite crust. Location: Smolnicka Huta, Vychodoslovensky, Slovakia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Slawsonite: (Sr,Ca)Al2Si2O8
Comments: White crystalline slawsonite in rock. Location: Sarisaka, Kagami, Kochi, Japan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Smirnite: Bi2Te++++O5 Tsumoite: BiTe
Comments: Grayish to olive-green crusts of smirnite over quartz and metallic-grey tsumoite. Smirnite composition is (Bi1.98Pb.02)2.00Te1.00O4.99. Location: Shilovo-Isetskii mine, Ekaterinburg (Sverdlovsk), Ekaterinburgskaya (Sverdlovskaya) Oblast', Middle Urals, Urals Region, Russia. Ex Fedor V. Chukhrov specimen collected before WWII. Scale: Picture Size 12x10 mm. © Pavel M. Kartashov