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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) 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
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
Skutterudite: (Co,Ni)As3-x
Comments: Bright, untarnished, metallic crystals of skutterudite up to 1 cm. Location: Bou Azzer, Morocco. Scale: Picture size 3 cm. © Sandro Maggia/Minernet.it
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
Comments: Cubic crystals of Skutterudite on matrix. Location: Bou Azzer, Anti-Atlas Mountains, Morrocco. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
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