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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
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
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: Colorfull assemblege of techmannite (reddish black) with orpiment (golden yellow) and realgar (reddish orange) in white dolomite. Location: Lengenbach quarry, Binntal, Wallis, Switzerland. Scale: Picture size 3 mm. © Tom Loomis / Dakota Matrix
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
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
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
Tremolite: [ ]Ca2Mg5Si8O22(OH)2
Comments: Dark green tremolite crystal cluster. Location: Selleck Road Locality, West Pierrepont, St Lawrence Co., New York, USA. Scale: 4.5x2x1.5 cm. © John Betts - Fine Minerals
Tremolite: [ ]Ca2Mg5Si8O22(OH)2 Magnesiocoulsonite: MgV+++2O4
Comments: Black grains of magnesiocoulsonite with green chromian tremolite. Metallic bronze grain of thiospinelid of kalininite-florensovite series is visible in the upper right corner of the image. Location: Pereval Marble Quarry, Slyudyanka (Sludyanka), Lake Baikal area, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia. Scale: FOV is 3x2 mm. © Pavel M. Kartashov