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Stratlingite: Ca2Al[(OH)6AlSiO2-3(OH)4-3]·2,5(H2O)
Comments: Transparent blue-tinted platy stratlingite crystal aggregate in vug. Location: Bellerberg, Eifel, Rheinland-Pfalz, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Strelkinite: Na2(UO2)2V2O8·6(H2O)
Comments: Yellow massive strelkinite. Location: Basaral occurrence, southwest Balkhash region, Kazakhstan. Scale: See Image. © Rruff Database
Strengite: Fe+++PO4·2(H2O)
Comments: Pink, bladed, stellate spray of strengite crystals on matrix. Location: Indian Mountain, Cherokee County, Alabama, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Strengite: Fe+++PO4·2(H2O) Cacoxenite: (Fe+++,Al)25(PO4)17O6(OH)12·75(H2O)
Comments: Lilac colored, spear-head shape crystals of strengite to 5mm in large, open vug associated with golden fibrous cacoxenite. Location: Coon Creek, Polk Co., Arkansas, USA. Scale: Picture size 2 cm. © Tom Loomis / Dakota Matrix
Strengite: Fe+++PO4·2(H2O) Kidwellite: Na(Fe+++,Cu)9+x(PO4)6(OH)11·3(H2O)
Comments: Spherical, crystalline aggregate of purple strengite on green kidwellite. Location: Three Oak Gap, Polk Co., Arkansas, USA. Scale: Crystal size 2 mm. © Tom Loomis / Dakota Matrix
Stringhamite: CaCuSiO4·2(H2O) Wollastonite-1A: CaSiO3
Comments: Rounded aggregate of dark blue stringhamite crystals on bladed, white wollastonite. Location: Christmas mine, Hayden, Gila County, Arizona, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Stromeyerite: AgCuS
Comments: 1.5 cm spray of hair-like Stromeyerite crystals on quartz and calcite matrix. Location: Vrancice near Pribram, Czech Republic. Scale: Picture size 2 cm. © John Veevaert
Stronalsite: SrNa2Al4Si4O16 Jadeite: Na(Al,Fe+++)Si2O6
Comments: White stronalsite veinlets in massive pale green jadeite. Location: Ohasa, Okayama, Japan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Strontianite: SrCO3
Comments: Lustrous, white strontianite crystals covering all sides of matrix. The strontianite fluoresces bright blue-white under UV illumination. Location: Lime City Quarry, Lime City, Wood Co., Ohio, USA. Scale: 6x5x4 cm. © John Betts - Fine Minerals
Strontiodresserite: (Sr,Ca)Al2(CO3)2(OH)4·(H2O)
Comments: Opaque white spherical strontiodresserite, with radial structure. Location: Francon Quarry, Montreal, Quebec, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species