's Image Gallery

Sillenite: Bi12SiO20

Comments: Greenish to yellowish grains of sillénite in matrix.
Location: Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Sillimanite: Al2SiO5 = Al[6]Al[4]OSiO4

Comments: Silky massive sillimanite.
Location: Khasia Hills, Assum, India. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Silver: Ag  
Gold: Au

Comments: Very well crystallized Electrum (Silver rich gold) on quartz. The analysis gave 31.47% silver.
Location: Verespatak (now Rosia Montana), Transylvania, Romania. Scale: 2.8 x 3.4 cm.
© Fabre Minerals

Silver: Ag

Comments: Numerous fine, silver wires to 4 mm in diameter attached to a matrix of massive white calcite and minor sulfides.
Location: Himmelsfahrt mine, near Freiberg, Saxony, Germany. Scale: 4 x 4.5 x 6 cm.
© Dan Weinrich

Silver: Ag  
Stephanite: Ag5SbS4

Comments: Thick, ropy, native silver wires with blocky, well-crystallized stephanite on white and tan calcite matrix.
Location: Freiberg, Erzgebirge, Saxony, Alemania, Germay. Scale: Picture size 3 cm.
© Fabre Minerals

Silver: Ag  
Mckinstryite: (Ag,Cu)2S

Comments: Black metallic massive mckinstryite with wire silver.
Location: Peregrina Mine, Guanajuato, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Silvialite: (Ca,Na)4Al6Si6O24(SO4,CO3)

Comments: BSE image of silvialite (Sil), plagioclase (An70)-calcite symplectite (P-C) corona, and plagioclase (An45, P). MinMag, v63:321.
Location: Upper-mantle garnet-granulite xenoliths hosted by olivine nephelinite, from McBride Province, North Queensland, Australia. Scale: Scale Bar 100 µm.
© Mineralogical Magazine

Simmonsite: Na2LiAlF6

Comments: Backscattered electron images of primary assemblage of cryolite-cryolithionite (cl) simmonsite (sm) and trace elpasolite (ep). (AmMin, v 84, p 770).
Location: Zapot amazonite-topaz-zinnwaldite pegmatite located in the Gillis Range, Mineral Co., Nevada, USA. Scale: See Image.
© American Mineralogist

Simonellite: C19H24

Comments: Colorless to white Simonellite on fossil wood.
Location: Fognano, Tuscany, Italy. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Simonkolleite: Zn5(OH)8Cl2·(H2O)

Comments: Very small colorless crystals with hexagonal shape of simonkolleite.
Location: Richelsdorf Smelter, Süss, Richelsdorf District, Hesse, Germany. Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

Simpsonite: Al4(Ta,Nb)3O13(OH)

Comments: Translucent pale pink simpsonite crystal fragment.
Location: Alto do Giz, Equidor, Rio Grande do Sol, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sincosite: Ca(V++++O)2(PO4)2·5(H2O)  
Minyulite: KAl2(PO4)2(OH,F)·4(H2O)

Comments: Pale greenish white acicular radial sprays of minyulite to 8mm with small, green, tabular sincosite.
Location: Ross Hannibal mine, Lawrence County, South Dakota. Scale: Picture size 2 cm.
© Tom Loomis / Dakota Matrix

Sincosite: Ca(V++++O)2(PO4)2·5(H2O)

Comments: Tabular single crystals of sincosite to 2 mm on drusy quartz.
Location: Ross Hannibal Mine, Lawrence Co., South Dakota, USA. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Sinhalite: MgAlBO4

Comments: Crystalline sinhalite in white marble.
Location: Amity, near Warwick, Orange County, New York, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sinjarite: CaCl2·2(H2O)

Comments: Sinjarite specimen sealed in a glass capsule.
Location: Cheleken, Caspian Sea, Turkmenistan. Scale: Grid Size 1 mm.
© Sergey Vasiliev / Systematic Mineralogy

Sinkankasite: H2MnAl(PO4)2(OH)·6(H2O)

Comments: White crystalline spray of acicular sinkankasite to 1mm on matrix.
Location: Barker mine, Keystone, Pennington County, South Dakota, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Sinnerite: Cu6As4S9

Comments: Blackish-grey aggregate of sinnerite crystals with red realgar on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture high 6 mm.
© Walter Gabriel

Sitinakite: Na2K(Ti,Nb)4O4(SiO4)2(O,OH)·4(H2O)

Comments: Beige translucent crudely formed sitinakite (arrow) crystal with white natrolite and dark, acicular aegirine.
Location: Mount Kukisvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sjogrenite: Mg6Fe+++2(CO3)(OH)16·4(H2O)

Comments: Red-brown sjogrenite crust on serpentinite rock.
Location: Fort Point, San Francisco County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Skaergaardite: CuPd

Comments: (e) A euhedral crystal of skaergaardite exhibiting the form cube {100} (possibly distorted) included in a bornite-chalcocite i(BN+CC) grain. (f) bornite (BN)+ chalcopyrite (CP) microglobule with a skaergaardite cube with rounded edges. (MinMag 68:615).
Location: Drill core taken from the Skaergaard intrusion, Kangerdlugssuaq area, East Greenland. Scale: See Image.
© Mineralogical Magazine