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Switzerite: (Mn++,Fe++)3(PO4)2·7(H2O)
Comments: Pale brown sub-metallic thin platy switzerite coatings. Location: Foote Mine, King's Mountain, Cleveland County, North Carolina, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sylvanite: (Au,Ag)2Te4
Comments: Flat-lying, metallic crystallized sylvanite on a quartz rich matrix. Caleb Simkoff Collection. Location: Sacaramb (Nagyag), Transylvania, Romania. Scale: 7.5 x 8.5 x 4 cm. © Dan Weinrich
Sylvite: KCl
Comments: Translucent sylvite crystal cluster, somewhat deliquescent. Location: F.O. Kailwerk, Sigmundshall, near Wunstorf, Niedersachsen, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Symplesite: Fe++3(AsO4)2·8(H2O)
Comments: Fan-shaped spray of acicular symplesite on matrix. Location: Saubachthal, Saxony, Germany. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Synadelphite: (Mn,Mg,Ca,Pb)9(As+++O3)(As+++++O4)2(OH)9·2(H2O) (?)
Comments: Moss mine, Nordmark, Värmland, Sweden. Location: Black psuedo-octahedral crystals of synadelphite with cube modifications. Scale: See Image. © Rruff Database
Synchysite-(Ce): CaCe(CO3)2F Cordylite-(Ce): Ba(Ce,La)2(CO3)3F2
Comments: Yellow crystals of cordylite-(Ce) on light brownish synchysite-(Ce). Location: Narssârssuk (Narsarsuk), Igaliko, Greenland. Scale: Picture size 1.5 mm. © Thomas Witzke / Abraxas-Verlag
Synchysite-(Ce): CaCe(CO3)2F
Comments: Prismatic crystals of synchysite-(Ce) on matrix. Location: Kaiserer quarry, Raurisertal, Salzburg, Austria. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Synchysite-(Y): CaY(CO3)2F
Comments: Small thin tabular crystals of synchysite-(Y) in a vug. Location: Cuasso da Monte, Varese province, Lombardy, Italy. Scale: Picture size 3 mm. © Thomas Witzke / Abraxas-Verlag
Syngenite: K2Ca(SO4)2·(H2O)
Comments: Opaque platy crystal syngenite rosette on massive white halite. Location: Sigmundshall Mine, Bokelch, Hannover, Niedersachsen, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Szaibelyite: MgBO2(OH) Borcarite: Ca4MgB4O6(OH)6(CO3)2
Comments: Pale aqua granular borcarite with white fibrous to granular szaibelyite. Location: Nalednoya, Republic of Sakha, Siberia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Szaibelyite: MgBO2(OH) Kainite: MgSO4·KCl·3(H2O)
Comments: pale violet granular kainite intermixed with white ascharite (szaibelyite). Location: Havesa, Empelde, Hannover, Niedersachsen, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Szaibelyite: MgBO2(OH)
Comments: Bright white fibrous szaibelyite coating on serpentinite rock. Location: Stinson Beach, Marin County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Szenicsite: Cu3MoO4(OH)4
Comments: Deep green szenicsite crystals on siliceous green to brown jasperoid. Location: Jardinera #1 Mine, Atacama Province, Chile. Scale: 6.2 x 3.5 cm. © John Veevaert
Szmikite: MnSO4·(H2O)
Comments: Tan translucent szmikite. Location: Calumet Mine, Galena Hill, Yukon Territory, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Szomolnokite: Fe++SO4·(H2O) Voltaite: K2Fe++5Fe+++3Al(SO4)12·18(H2O)
Comments: Whitish crystalline crust of voltaite on crystals of brown szomolnokite. Location: Alcaparrosa Mine, Cerritos Bayos, Chile. Scale: Picture size 1 cm. © John Veevaert
Szomolnokite: Fe++SO4·(H2O) Halotrichite: Fe++Al2(SO4)4·22(H2O)
Comments: Tan powdery szomolnokite crust on silky fibrous halotrichite with yellow metavoltine. Location: Markey Mine, Red Canyon, San Juan County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Szymanskiite: Hg+16(Ni,Mg)6(H3O)8(CO3)12·3(H2O)
Comments: SEM image of a group of szymafskiite crystals. (CanMin, v28:703). Location: Clear Creek mercury mine, New Idria district, San Benito County, California. Scale: See Image. © Canadian Mineralogist
Taaffeite: Magnesiotaaffeite-6N3S: (Mg,Fe++,Zn)2Al6BeO12 Magnesiotaaffeite-2N2S: Mg3Al8BeO16
Comments: BSE image of magnesiotaaffeite-6N3S (Mgt-6N3S) with a central lamella of magnesiotaaffeite-2N2S (Mgt-2N2S). Other minerals Spl: spinel; Chl: clinochlore. Location: Polymetamorphic dolomite marble at Eastern Alps, Stubenberg, Styria, Austria. (CanMin, v46:1195). Scale: See Image. © Canadian Mineralogist
Tacharanite: Ca12Al2Si18O33(OH)36 Phillipsite-Na: (Na,K,Ca)1-2(Si,Al)8O16·6(H2O)
Comments: Spherical tacharanite aggregates on phillipsite crystals. Location: Espalion, Aveyron, France. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Tachyhydrite: CaMg2Cl6·12(H2O)
Comments: Translucent pink tinted granular tachyhydrite. Location: Stassfurt, Sachsen-Anhalt, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species