Rruff Database's Image Gallery

Stenhuggarite: CaFe+++(As+++O2)(As+++Sb+++O5)

Comments: Aggregate of reddish orange granular stenhuggarite crystals in matrix of black hematite.
Location: Langban, Filipstad, Varmland, Sweden. Scale: See Image.
© Rruff Database

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

Strelkinite: Na2(UO2)2V2O8·6(H2O)

Comments: Yellow massive strelkinite.
Location: Basaral occurrence, southwest Balkhash region, Kazakhstan. Scale: See Image.
© Rruff Database

Synadelphite: (Mn,Mg,Ca,Pb)9(As+++O3)(As+++++O4)2(OH)9·2(H2O) (?)

Comments: Moss mine, Nordmark, Värmland, Sweden.
Location: Black psuedo-octahedral crystals of synadelphite with cube modifications. Scale: See Image.
© Rruff Database

Tadzhikite-(Y): Ca4(Y,Ce)2(Ti,Al,Fe+++,[ ])2[Si4B4O22](OH)2

Comments: Grayish brown crystals of tadzhikite-(Y) in matrix.
Location: Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mountains, Tajikistan. Scale: See Image.
© Rruff Database

Tocornalite: (Ag,Hg)I (?)

Comments: Pale yellow granular tocornalite in matrix.
Location: Block 14 Opencut, Broken Hill, Yancowinna Co., New South Wales, Australia. Scale: See Image.
© Rruff Database

Tolovkite: IrSbS

Comments: Dark gray metallic crystal of tolovkite embedded in epoxy.
Location: Placer from Ust-Belsky Massif, Korjak Highand, Russia. Scale: See Image.
© Rruff Database

Trattnerite: (Fe,Mg)2(Mg,Fe)3(Si12O30)

Comments: Dark-blue hexagonal plate of trattnerite in matrix.
Location: Stradner Kogel Mountain, Wilhelmsdorf, Bad Gleichenberg, Styria, Austria. Scale: See Image.
© Rruff Database

Trembathite: (Mg,Fe++)3B7O13Cl

Comments: Blue-green pseudocubic trembathite crystal.
Location: Salt Springs deposit (Salt Springs evaporite deposit), Sussex, Kings Co., New Brunswick, Canada. Scale: See Image.
© Rruff Database

Tsepinite-Ca: (Ca,K,Na,[ ])2(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O)

Comments: Groups of tan colored parallel prismatic tsepinitie-Ca crystals associated with eudialyte and arfvedsonite.
Location: Hackmann Valley, Yukspor Mountain, Khibiny, Kola, Russia. Scale: See Image.
© Rruff Database

Tsepinite-K: (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2·3(H2O)

Comments: Light orange acicular crystals of tsepinite_K.
Location: Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaya Oblast'; Northern Region,. Scale: See Image.
© Rruff Database

Tsepinite-Na: (Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2·3(H2O)

Comments: Subparallel pale tan prismatic tsepinite-Na crystals with vitreous luster.
Location: Lepkhe-Nel'm Mt. (Lepkhe-Nelm Mt.), Seidozero Lake, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: See Image.
© Rruff Database

Tundrite-(Ce): Na2Ce2TiO2(SiO4)(CO3)2

Comments: Brown elongated bladed tundrite-(Ce) crystals associated with white orthoclase and black amphibole.
Location: Barkeviksjaer, Norway. Scale: See Image.
© Rruff Database

Uramarsite: (NH4,H3O)2(UO2)2(AsO4,PO4)2·6H2O

Comments: Brownish green cleavage fragment or uramarsite, co-type material.
Location: Bota-Burum Uranium deposit, Kazakhstan. Scale: See Image.
© Rruff Database

Vertumnite: Ca8Al4(Al4Si5)O12[(OH)36·10(H2O)

Comments: Rosettes of colorless platy vertumnite crystals.
Location: Ettringer, Bellerberg Mt, Eifel mountains, Germany. Scale: See Image.
© Rruff Database

Vlodavetsite: AlCa2(SO4)2F2Cl·4(H2O)

Comments: Colorless, vitreous, massive vlodavetsite, rarely in irregular plates associated with calcite.
Location: Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: See Image.
© Rruff Database

Volfsonite: Cu+10Cu++Fe++Fe+++2Sn++++3S16  
Stannite: Cu2FeSnS4

Comments: Bluish-black octahedron of stannite (also known as volfsonite).
Location: Yaogangxian Wolfram mine, Yizhang County, Hunan Province, China. Scale: See Image.
© Rruff Database

Vulcanite: CuTe  
Cameronite: AgCu7Te10  
Rickardite: Cu7Te5

Comments: Gray metallic massive cameronite showing subconchoidal fracture associated with purple rickardite and bronzy plates of vulcanite in a mass of tellurium, co-type specimen.
Location: Good Hope mine, Vulcan District, Gunnison County, Colorado, USA. Scale: See Image.
© Rruff Database

Vuoriyarvite-K: (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O)

Comments: Light tan, compact mass of vuoryarvite-K micro-crystals associated with calcite and greenish sodalite.
Location: Vein No. 46, Kirovskii apatite mine (Kirovsky Mine; Kirov Mine), Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: See Image.
© Rruff Database

Wadsleyite: (Mg,Fe++)2SiO4

Comments: Synthetic wadsleyite crystals.
Location: None, laboratory grown. Scale: See Image.
© Rruff Database