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Schiavinatoite: (Nb,Ta)BO4
Comments: Black, 3mm euhedral crystal of schiavinatoite in matrix. Location: Ampanodiana Sud, Tetezantsio, Mahaiza, Madagascar. Scale: 3x2x2cm. © Tom Loomis / Dakota Matrix
Schiavinatoite: (Nb,Ta)BO4 Rynersonite: Ca(Ta,Nb)2O6
Comments: Brown, columnar schiavinatoite with minor white rynersonite sticks on quartz. Location: Ampanodiana Sud, Tetezantsio, Mahaiza, Antananarivo, Madagascar. Scale: See Image. © Jeff Weissman / Photographic Guide to Mineral Species
Schieffelinite: Pb(Te++++++,S)O4·(H2O) Rodalquilarite: H3Fe+++2(Te++++O3)4Cl
Comments: Creamy white Schieffelinite with minor green rodalquilarite. Location: Tombstone, Tombstone District, Cochise Co., Arizona, USA. Scale: Picture size 6 mm. © Thomas Witzke / Abraxas-Verlag
Schirmerite: Ag3Pb3Bi9S18 to Ag3Pb6Bi7S18
Comments: Gray metallic granular schirmerite in quartz. Location: Grand Trunk, Geneva District, Park County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Schlemaite: (Cu,[ ])6(Pb,Bi)Se4 Clausthalite: PbSe Eucairite: CuAgSe
Comments: Reflected-light digital-image of the intermixed schlemaite grain in type sample F2, from which the reflectance, crystallographic and crystal-structure data were obtained. (CanMin, v 41, p 1435). Location: "Tiber" dike, -855-m level, block 5128, main shaft # 371, Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany. Scale: See Picture. © Canadian Mineralogist
Schlossmacherite: (H3O,Ca)Al3(AsO4,SO4)2(OH)6
Comments: Small (up to 3 mm) clusters of pale yellow green Schlossmacherite crystals on a siliceous matrix. Location: Guanaco, Chile. Scale: Picture size 5 mm. © John Veevaert
Schmiederite: Pb2Cu++2(Se++++O3)(Se++++++O4)(OH)4
Comments: Acicular schmiederite micro crystals in quartz. Location: Condor Mine, La Rioja, Argentina. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Schmitterite: (UO2)TeO3 Emmonsite: Fe+++2Te++++3O9·2(H2O)
Comments: Yellow schmitterite with green emmonsite. Location: Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag
Schneebergite: Bi(Co,Ni)2(AsO4)2(OH,H2O)2
Comments: Prismatic, acicular crystals of schneebergite. Location: Roter Berg, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.7 mm. © Thomas Witzke / Abraxas-Verlag
Schneiderhohnite: Fe++Fe+++3As+++5O13
Comments: Quartz with a 0.8 cm partial crystal of schneiderhöhnite and several smaller complete crystals of schneiderhöhnite to 3 mm. Location: Tsumeb Mine, Tsumeb, Namibia. Scale: Picture size 1.5 cm. © John Veevaert
Schoderite: Al2(PO4)(VO4)·8(H2O)
Comments: Sub-mm coatings of yellow to deep orange Schoderite on matrix. Location: Fish Creek Range, Eureka County, Nevada, USA. Scale: Picture size 2 cm. © John Veevaert