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Salesite: Cu(IO3)(OH)
Comments: Blue, prismatic crystal of Salesite in matrix. Location: Chuquicamata, Antofagasta, Chile. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Samsonite: Ag4MnSb2S6
Comments: Black, prismatic crystal of samsonite in matrix. Location: St. Andreasberg, Harz, Lower Saxony, Germany. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Santaclaraite: CaMn++4Si5O14(OH)2·(H2O)
Comments: Flesh-colored crystalline aggregates of Santaclaraite. Location: Corral Hollow, Alemada County, California, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Sarkinite: Mn++2(AsO4)(OH)
Comments: Reddish brown crystalline aggregates of sarkinite on matrix. Location: Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Sartorite: PbAs2S4
Comments: Black, striated crystal of Sartorite on dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Schoepite: (UO2)8O2(OH)12·12(H2O) Becquerelite: Ca(UO2)6O4(OH)6·8(H2O)
Comments: Bright yellow crystals of schoepite on transparent yellow becquerelite. Location: Shinkolobwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: . © Lou Perloff / Photo Atlas of Minerals
Schoonerite: Fe++2ZnMnFe+++(PO4)3(OH)2·9(H2O)
Comments: Dark crystals of schoonerite on matrix. Location: Hagendorf, Bavaria, Germany. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Schultenite: PbHAsO4
Comments: Arrow-shaped crystals of schultenite on matrix. Location: Gifford Lakes, King County, Washington, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Searlesite: NaBSi2O5(OH)2
Comments: Clear, prismatic crystal of Searlesite. Location: Point of Rocks Mesa. Colfax County, New Mexico, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Segelerite: CaMgFe+++(PO4)2(OH)·4(H2O)
Comments: Yellow, prismatic, striated crystal of Segelerite. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Senegalite: Al2(PO4)(OH)3·(H2O)
Comments: Yellowish green, prismatic, crystals of senegalite. Location: Faleme River, Senegal. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Sengierite: Cu2(UO2)2V2O8·6(H2O)
Comments: Green, tabular, crystals of sengierite on matrix. Location: Lubumbashi, Shaba, Democratic Republic of the Congo. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Serpierite: Ca(Cu,Zn)4(SO4)2(OH)6·3(H2O)
Comments: Blue, acicular crystals of serpierite. Location: Serpieri mine, Laurium, Greece. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Shattuckite: Cu5(SiO3)4(OH)2 Ajoite: (K,Na)3Cu20Al3Si29O76(OH)16·~8(H2O)
Comments: Dark blue, tabular crystals of shattuckite on light blue ajoite. Location: New Cornelia mine, Ajo, Pima County, Arizona, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Siegenite: (Ni,Co)3S4
Comments: Equant, dark gray, metallic crystals of siegenite on matrix. Location: LaMotte mine, Fredericktown, Madison County, Missouri, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Sigloite: Fe+++Al2(PO4)2(OH)3·5(H2O) Vauxite: Fe++Al2(PO4)2(OH)2·6(H2O)
Comments: Lime green, crystalline aggregate of sigloite on massive, blue vauxite. Location: Llallagua, Potosi Department, Bolivia. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
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: Cubic crystals of Skutterudite on matrix. Location: Bou Azzer, Anti-Atlas Mountains, Morrocco. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Smithsonite: ZnCO3
Comments: Twinned crystals of smithsonite on matrix. Location: Ojuela mine, Mapimi, Durango, Mexico. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Sodalite: Na8Al6Si6O24Cl2 Perovskite: CaTiO3
Comments: Clear crystals of sodalite with hoppered perovskite on matrix. Location: Udersdorf, Rhineland-Palatinate, Germany. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals