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Sepiolite: Mg4Si6O15(OH)2·6(H2O)
Comments: Sectile to chalky massive sepiolite. Location: Pinos Altos, Grant County, New Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Serendibite: Ca2(Mg,Al)6(Si,Al,B)6O20 Phlogopite: KMg3(Si3Al)O10(F,OH)2
Comments: Blue serendibite, with golden colored phlogopite, in white marble. Location: Near Johnsberg, Warren County, New York, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Shabynite: Mg5(BO3)Cl2(OH)5·4(H2O)
Comments: Translucent shabynite grains. Location: Korshunovskoye Deposit, Irkutsk District, Siberia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Shadlunite: (Pb,Cd)(Fe,Cu)8S8
Comments: BSE polished section image of shadlunite inclusions (SHD) with galena (GN) in chalcopyrite (CP). Location: Majak (Mayak) and Oktyaber mines, Talnakh area, Noril'sk, western Siberia, Russia. Scale: Picture Size 150 µm. © Jeff Weissman / Photographic Guide to Mineral Species
Shafranovskite: K2Na3(Mn++,Fe++,Na)4[Si9(O,OH)27](OH)2·n(H2O), n~2.33
Comments: Yellow-brown fine grained shafranovskite with red eudialyte and black aegirine. Location: Mount Rasvumchorr, Khibiny Massif, Kola Peninsular, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Shattuckite: Cu5(SiO3)4(OH)2
Comments: Blue, globular aggregates of radial shattuckite crystals. Location: Grand View Mine, Grand Canyon, Coconino County, Arizona, USA. Scale: See Image. © Jeff Weissman / Photographic Guide to Mineral Species
Sherwoodite: Ca9Al2V++++4V+++++24O80·56(H2O)
Comments: Dark blackish-violet sherwoodite, altering to translucent green, crystalline crust. Location: San Juan County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Shibkovite: K(Ca,Mn,Na)2(K2-x,[ ]x)2ZnSi12O30 (x~0.8) Polylithionite: KLi2AlSi4O10(F,OH)2
Comments: Clear crystalline shibkovite aggregates with peach colored translucent polylithionite. Location: Dara-Pioz, Tien-Shan, Tadzhikistan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Shuiskite: Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2·(H2O)
Comments: Acicular shuiskite microcrystal sprays with epidote and prehnite. Location: Quincy Mine, Hancock, Houghton County, Michigan, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sibirskite: CaHBO3
Comments: Translucent granular sibirskite. Location: Novofrolovskoye, Sverdlovsk District, Northern Urals, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species