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Strakhovite: NaBa3(Mn++,Mn+++)4Si6O19(OH)3
Comments: Dark green vitreous massive strakhovite with inset image of sample. Location: Dzhavodi Area, Ir-Nimi manganese deposit, Taikan Ridge, Khabarovskiy Kray, Far-Eastern Region, Russia. Scale: See Image. © Rruff Database
Stranskiite: Zn2Cu++(AsO4)2
Comments: Blue fibrous Stranskiite veinlets in white quartz. Location: Tsumeb, Oshikoto, Namibia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Strashimirite: Cu8(AsO4)4(OH)4·5(H2O)
Comments: Green, radial sprays of acicular strashimirite crystals on matrix. Location: Majuba Hill mine, Pershing County, Nevada. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
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
Strontioginorite: (Sr,Ca)2B14O23·8(H2O)
Comments: Silky white strontioginorite with anhydrite. Location: Kohnstein Quarry, Harz Mts, Thuringia, Germany. Scale: Sample Size 4 cm. © Thomas Witzke / Abraxas-Verlag
Strontiojoaquinite: (Na,Fe++)2Ba2Sr2Ti2[Si4O12]2(O,OH)2·(H2O)
Comments: Yellow, pointed crystals of Strontiojoaquinite on matrix. Location: Mina Numero Uno, San Benito County, California, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Strontiomelane: SrMn++++6Mn+++2O16
Comments: BSE image of strontiomelane. (CanMin, v37:673). Location: Praboma mine near Saint-Marcel, Aosta Valley, Italian Alps, Italy. Scale: Scale Bar 100 µm. © Canadian Mineralogist
Strontiopyrochlore: Sr2Nb2(O,OH)7
Comments: Creamy-white strontiopyrochlore pesudomorphous after twinned loparite? covered with brownish manganese oxide film. Location: Zircon point at the NE exocontact zone of the massif. Vavnbed Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Crystal Size 8x9x9 mm. © Pavel M. Kartashov
Strontiowhitlockite: Sr7(Mg,Ca)3(PO4)6[PO3(OH)] Bobierrite: Mg3(PO4)2·8(H2O)
Comments: Pale white to pink fine grained strontiowhitlockite with bobierrite. Location: Kovdor Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Strunzite: Mn++Fe+++2(PO4)2(OH)2·6(H2O)
Comments: Acicular, stellate sprays of strunzite crystals on matrix. Location: Palermo #1 mine, North Groton, Grafton County, New Hampshire, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Struverite: (Ti,Ta,Fe+++)O2
Comments: Struverite crystal in white feldspar. Location: Pisek, Jihocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species