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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
Smithite: AgAsS2
Comments: Spheric, pseudo-hexagonal, reddish crystal of smithite with a gray sulfosalt on white dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 0.5 mm. © Walter Gabriel
Smithite: AgAsS2 Chabourneite: (Tl,Pb)21(Sb,As)91S147
Comments: Black metallic chabourneite with conchoidal fracture, associated with yellow-red realgar and deep-red smithite. Location: Jas Roux, Pelvoux Mt., Valgaudemar, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France. Scale: See Image. © Rruff Database
Smithsonite: ZnCO3 Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)
Comments: Purple transparent crystals of creedite to 6 mm on matrix of creamy botryoidal crystalline smithsonite. Location: Level 8 San Antonio mine, Santa Eulalia, Chihuahua, Mexico. Scale: 7 x 3.5 x 2 cm. © Dan Weinrich
Smithsonite: ZnCO3
Comments: Twinned crystals of smithsonite on matrix. Location: Ojuela mine, Mapimi, Durango, Mexico. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Smithsonite: ZnCO3 Murdochite: PbCu6O8-x(Cl,Br)2x
Comments: Dark metallic micro crystals of murdochite on pale blue-gray smithsonite crystal covered matrix. Location: Silver Hill Mine group, Silver Hill, Waterman District, Waterman Mts, Pima Co., Arizona, USA. Scale: 5x4x2 cm. © John Betts - Fine Minerals
Comments: Yellow, cadmian-bearing smithsonite crystalline aggregate. Location: Rush Mine in Marion County, Arkansas, USA. Scale: 6.5 x 11 cm. © Kevin Ward
Smithsonite: ZnCO3 Fraipontite: (Zn,Al)3(Si,Al)2O5(OH)4 Zinalsite: Zn2AlSi2O5(OH)4·2(H2O) (?)
Comments: Pearly white, sub-mm fraipontite (zinalsite) crystals associated with green smithsonite. Location: Lavrion District Mines, Lavrion District, Attikí (Attica; Attika) Prefecture, Greece. Scale: Specimen Size 1.4 x 1.0 x 0.9 cm. © Rob Lavinsky
Smolianinovite: (Co,Ni,Mg,Ca)3(Fe+++,Al)2(AsO4)4·11(H2O)
Comments: Tan to brown smolianinovite pseudomorphs after cobaltite crystals, with erythrite and tarnished cobaltite. Location: Mount Cobalt, Cloncurry, Queensland, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Smrkovecite: Bi2O(OH)(PO4)
Comments: Waxy smrkovecite botryoids in vuggy quartz. Location: Smrkovec, Zapadocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Smythite: (Fe,Ni)9S11 or (Fe,Ni)13S16
Comments: Dull metallic massive smythite with pyrite. Part of drillcore. Location: Helena, Boulder Co., Montana, USA. Scale: Specimen Size 2.5x3 cm. © Diederik Visser