Mineral Specimen Images (T)

Tokkoite: K2Ca4[Si7O18(OH)](F,OH)  
Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O)

Comments: Yellow crystalline tokkoite intermixed with purple charoite (viewed cross-sectional to fiber direction).
Location: Murun, Aldan, Republic of Sakha, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tokyoite: Ba2Mn(VO4)2(OH)

Comments: Metallic reddish brown crystals of tokyoite (< 0.3 mm) on dark gray braunite matrix.
Location: Gambatesa mine, Graveglia Valley, Genova, Italy. Scale: Picture size 4 mm.
© Tom Loomis / Dakota Matrix

Tolbachite: CuCl2

Comments: Small orange-brownish crystals of tolbachite.
Location: Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 2.5 mm.
© Thomas Witzke / Abraxas-Verlag

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

Tomichite: (V,Fe)4Ti3AsO13(OH)

Comments: Section of drill core with a very rare crystal of tomichite to 1mm.
Location: Hemlo Gold mine, Ontario, Canada. Scale: Core size 2.5 cm.
© Tom Loomis / Dakota Matrix

Tongxinite: Cu2Zn

Comments: Tiny nugget with sorosite in a geletin capsule.
Location: Newjansk, Ural, Russia. Scale: Not given.
© Diederik Visser

Tooeleite: Fe+++6(AsO3)4(SO4)(OH)4·4H2O

Comments: SEM photograph of typical tooeleite crystal terminations. MinMag v56:71.
Location: U.S. Mine, Tooele Country, Utah. USA. Scale: Scale Bar 50 µm.
© Mineralogical Magazine

Topaz: Al2SiO4(F,OH)2

Comments: Transparent sharp gem topaz crystal set upon a matrix of crystallized white albite and silvery muscovite.
Location: Yunu Village, Shigar, Gilgit division, Pakistan. Scale: 1.6 x 1.8 x 4.2 cm.
© Dan Weinrich

Torbernite: Cu(UO2)2(PO4)2·8-12(H2O)

Comments: Bright green platy crystals of torbernite on matrix.
Location: Musonoi Mine, Shaba, Zaire. Scale: 7x5x5 cm.
© Isaias Casanova / IC Minerals

Torbernite: Cu(UO2)2(PO4)2·8-12(H2O)

Comments: Cluster of green torbernite crystals. Radioactive.
Location: Margabal Mine, Entraygues-sur-Truyère, Aveyron, Midi-Pyrénées, France. Scale: 22x13x10 mm.
© John Betts - Fine Minerals

Tornebohmite-(Ce): (Ce,La,Nd)2Al(SiO4)2(OH)

Comments: Vein of dark green tornebohmite-(Ce) with selveges of black allanite-(Ce) in a K-feldspar matrix.
Location: Jamestown District, Boulder Co., Colorado, USA. Scale: Specimen Size 6.5 x 3.8 x 2.5 cm.
© Rob Lavinsky

Torreyite: (Mg,Mn)9Zn4(SO4)2(OH)22·8(H2O)

Comments: Whitish translucent granular torreyite.
Location: Sterling Mine, Ogdensburg, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tosudite: Na0,5(Al,Mg)6(Si,Al)8O18(OH)12·5(H2O)

Comments: Fine grained massive tosudite.
Location: Takatama Mine, Fukushima, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tounkite: (Na,Ca,K)8Al6Si6O24(SO4)2Cl·(H2O)

Comments: Light yellow-green crystalline tounkite with dark lazurite in matrix.
Location: Malobystrinskoje, Baikal, Russia. Scale: Not Given.
© Diederik Visser

Toyohaite: Ag2FeSn3S8

Comments: Acicular needles of metallic toyohaite on matrix.
Location: Pirquitas (sector Oploca, level 7 1/4), Jujuy, Argentina. Scale: Specimen size 7.1 x 5.6 x 3.4 cm.
© Rob Lavinsky

Toyohaite: Ag2FeSn3S8

Comments: B&:W image showing checkered twins of toyohaite. (Mineralogical Journal, v15:222).
Location: Toyoha mine, SW Sapporo City, Hokkaido, Japan. Scale: Scale Bar 50µm.
© Mineralogical Journal

Traskite: (Ba,Ca)9(Fe++,Mn)2Ti2(SiO3)12(OH,Cl,F)6·6(H2O)  
Sanbornite: BaSi2O5

Comments: Orange translucent crystalline traskite in white sanbornite.
Location: Rush Creek, Fresno County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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

Trechmannite: AgAsS2

Comments: Dark red, trigonal pyramid crystal of trechmannite on dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Trechmannite: AgAsS2

Comments: Red prismatic crystals of trechmannite with minor gray glossy sulfosalt (rathite?) on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 0.3 mm.
© Walter Gabriel