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Schorl: NaFe++3Al6(BO3)3Si6O18(OH)4
Comments: Parallel grouping of sharp, black schorl crystals showing terminations. Location: Davib Ost, Erongo Mountains Namibia. Scale: Crystal size: 1.7 x 1.4 cm. © Fabre Minerals
Schorl: NaFe++3Al6(BO3)3Si6O18(OH)4 Albite: NaAlSi3O8
Comments: Several jet-black lustrous crystals of schorl perched on a white albite matrix. Location: Shengus, Gilgit, Pakistan. Scale: 4 x 3 x 2 cm. © Isaias Casanova / IC Minerals
Schorlomite: Ca3(Ti,Fe+++,Al)2[(Si,Fe+++,Fe++)O4]3
Comments: Lustrous massive black schorlomite. Location: Magnet Cove, Hot Spring County, Arkansas, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Schreibersite: (Fe,Ni)3P
Comments: Golden metallic schreibersite cleavage fragment from type IIB octahedrite meteorite. Location: Sau Luiao de Moreira Meteorite, Ponte de Lima, Minho, Viana do Castelo, Portugal. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Schreibersite: (Fe,Ni)3P Allabogdanite: (Fe,Ni)2P
Comments: Relict grain of allabogdanite crystal (ABG) surrounded by schreibersite rim (SCHR) in plessite matrix (PL). Black phase is a secondary Fe-Ni-hydroxide. Backscattered electron image. (AmMin, 87:1249). Location: Onello iron meteorite (high-Ni ataxite) Onello River basin, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Scale bar 10 µ-m. © American Mineralogist
Schreyerite: V+++2Ti3O9
Comments: SEM image of schreyerite crystal studied by single-crystal X-ray diffraction. AmMin, v91, p197. Location: Metamorphic rocks of the Sludyanka complex at the southern shore of Lake Baikal, Russia. Scale: Picture width 0.14 mm. © American Mineralogist
Schrockingerite: NaCa3(UO2)(CO3)3(SO4)F·10(H2O)
Comments: Pale greenish-yellow, platy schröckingerite on matrix. Location: Jack Daniels No. 1 Mine, Cameron District, Coconino County, Arizona, USA. Scale: See Photo. © Paul M. Schumacher
Comments: Pale greenish-yellow schröckingerite aggregates on matrix. Location: St Christoph Mine, Bärenhecke, Glashütte, Erzgebirge, Saxony, Germany. Scale: Picture size 6 mm. © Thomas Witzke / Abraxas-Verlag
Schuetteite: Hg3(SO4)O2
Comments: Yellow earthy schuetteite coatings. Location: Oceanic Mine, San Luis Obispo County, California. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Schuilingite-(Nd): PbCu(Nd,Gd,Sm,Y)(CO3)3(OH)·1.5(H2O)
Comments: Blue crystals of Schuilingite-(Nd). Location: Kasompi Mine, Kambove, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 1.8 mm. © Thomas Witzke / Abraxas-Verlag
Schulenbergite: (Cu,Zn)7(SO4,CO3)2(OH)10·3(H2O) Linarite: PbCu(SO4)(OH)2
Comments: Light greenish rosettes of schulenbergite with small green crystals of ramsbeckite and blue crystals of linarite. Location: Gelbe Birke Mine, Schwarzenberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.2 mm. © Thomas Witzke / Abraxas-Verlag