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Suessite: (Fe,Ni)3Si
Comments: B&W image of suessite (white) as vein fillings and blebs. Silicates (olivine, pigeonite) are gray; carbonaceous matrix is black. Hydrous ferric oxide veins are (light gray). Location: North Haig olivine pigeonite achondrite (ureilite). (AmMin, v67:126). Scale: Scale Bar 100 µm. © American Mineralogist
Sugakiite: Cu(Fe,Ni)8S8
Comments: Reflected light polished section of sugakiite (sg) associated with bornite (bn), talnakhite (td) and native copper (Cu). (CanMin, v43:266). Location: Horoman, Samani-cho, Urakawa-gun, Japan. Scale: See Image. © Canadian Mineralogist
Sugilite: KNa2(Fe+++,Mn+++,Al)2Li3Si12O30 Effenbergerite: BaCuSi4O10
Comments: Blue effenbergerite pods to across in massive purple sugilite. Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Crystal size 4 mm. © John Veevaert
Sugilite: KNa2(Fe+++,Mn+++,Al)2Li3Si12O30 Pectolite: NaCa2Si3O8(OH)
Comments: Sharp terminated purple crystals of sugilite to 5mm on white, acicular pectolite. Location: Wessels Mine, Kalahari, South Africa. Scale: Picture size 1.5 cm. © John Veevaert
Suhailite: (NH4)Fe3(Si3Al)O10(OH)2
Comments: PPL thin-section showing unoriented grains of graphite-rich golden suhailite. Suh - suhalite, Ann - annite, Sil - sillimanite. (AmMin v94:211). Location: Betic Cordillera gneisses (Spain). Scale: See Image. © American Mineralogist
Sulfoborite: Mg3B2(SO4)(OH)8(OH,F)2
Comments: Colorless transparent sulfoborite crystal. Location: Lake Inder, Atyrau, Kazakhstan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sulfur: S8 Coccinite: Hg++I2 (?)
Comments: Orange-red coccinite on sulfur. Due to the volatility of the mineral at room temperature, the sample is preserved in a closed vial. The photo was made through the vial, therefore the sharpness is reduced. Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 1 mm. © Thomas Witzke / Abraxas-Verlag
Sulfur: S8
Comments: Single complex crystal of sulfur on white, sucrosic aragonite. Location: Girgenti, Sicily, Italy. Scale: Crystal size 4.5. © John Veevaert
Sulfur: S8 Metastibnite: Sb2S3
Comments: Red coatings of metastibnite with yellow sulfur. Location: Steamboat Springs, Washoe County, Nevada, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sulphohalite: Na6(SO4)2FCl
Comments: Octahedral sulphohalite crystal. Location: Searles Lake, San Bernardino Co., California, USA. Scale: Crystal size 5 mm. © John Veevaert
Sulphotsumoite: Bi3Te2S
Comments: Dark gray sulphotsumoite, tarnishing, foliated in milky quartz. Location: Mina de la Carcel, Zacatecas, Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Sulvanite: Cu3VS4
Comments: Cubic grains of bronze-gray sulvanite crystals in marble. Location: Val Bona quarry, Carrara, Italy. Scale: Picture size 1 cm. © Dave Barthelmy
Sundiusite: Pb10(SO4)Cl2O8
Comments: Clear to white platy crystals to 1mm covering Hausmannite matrix. Location: Langban, Varmland, Sweden. Scale: Picture size 1 cm. © Tom Loomis / Dakota Matrix
Suolunite: Ca2Si2O5(OH)2·(H2O)
Comments: Translucent massive suolunite. Location: Oman. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Suredaite: PbSnS3
Comments: Silvery metallic columnar suredaite in matrix. Location: Pirquitas Mine, Jujuy, Argentina. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: BSE image of a large zoned crystal of suredaite, chemically SU-3, surrounded (replaced) by SU-2. White is skeletal galena. (AmMin 85:1068). Location: Pirquitas Ag-Sn deposit (Province Jujuy, NW-Argentina). Scale: See Image. © American Mineralogist
Surinamite: (Mg,Fe++)3Al4BeSi3O16
Comments: PPL thin-section image of blue surinamite (Sur) enclosing orthopyroxene (Opx) and sillimanite (Sil) with corderite (Crd), and quartz (Qtz). AmMin, v65:1474. Location: South Harris Igneous Complex, N.W. Scotland. Scale: Picture Size 1.2 mm. © American Mineralogist
Surite: (Pb,Cu)2-3(CO3)1.5-2(OH,F)0.5-1[(Al,Fe+++)2(Si,Al)4O10(OH)2]·n(H2O)
Comments: Pearly white, almost micaceous surite crystals on vuggy matrix with yellow cerussite. Location: Mammoth-Saint Anthony Mine, Tiger, Pinal Co., Arizona, USA. Scale: Picture size 1 cm. © Tom Loomis / Dakota Matrix
Surkhobite: KBa3Ca2Na2(Mn, Fe++,Fe+++)16Ti8(Si2O7)8O8(OH)4 (F,O,OH)8
Comments: Small grain of reddish surkhobite. Location: Dara-i-Pioz Glacier, Altai Range, Tajikistan. Scale: Graph Size 1 mm. © Sergey Vasiliev / Systematic Mineralogy
Sursassite: Mn++2Al3(SiO4)(Si2O7)(OH)3
Comments: Coppery-red colored silky fibrous sursassite vein with white quartz in rock. Location: Strategic Manganese Mine, near Woodstock, New Brunswick, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species