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Turanite: Cu5(VO4)2(OH)4
Comments: The holotype specimen of botryodal, olive green turanite (#3578) in a cavite in white barite from the collection of the Fersman Mineralogical Museum (Moscow, Russia). (CanMin, v 42, p732). Location: Tyuya-Muyun Ra-U deposit, the Alai Ridge foothills, Osh district, Kyrgyzstan. Scale: Specimen size 4.5 x 7.5 cm. © N.A. Pekova
Comments: SEM image of turanite crystals (a) parallel intergrown crystals. Location: Tyuya-Muyun Ra-U deposit, the Alai Ridge foothills, Osh district, Kyrgyzstan. Scale: See ImaGE. © Canadian Mineralogist
Turkestanite: Th(Ca,Na)2(K1-x,[ ]x)Si8O20·n(H2O)
Comments: Green, blocky, prismatic crystal of turkestanite in matrix. Location: Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mts, Districts of the Republican Subordination, Tajikistan. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Turneaureite: Ca5[(As,P)O4]3Cl Donpeacorite: (Mn,Mg)MgSi2O6 Parvowinchite: Na(NaMn++)(Mg4Fe+++)Si8O22(OH)2
Comments: Colorless, transparent turneaureite masses with light brown tirodite (parvowinchite) and darker brown donpeacorite. Location: 2500' level of the mine, ZCA Mine No. 4 (St Joe Mine; ZCA No. 4 mine), Balmat, Balmat-Edwards Zinc District, St Lawrence Co., New York, USA. Scale: Picture Size 0.5 cm. © Jeff Weissman / Photographic Guide to Mineral Species
Turquoise: CuAl6(PO4)4(OH)8·4(H2O)
Comments: Blue, triclinic crystals (rare) of turquoise on matrix. Location: Lynch Station, Campbell County, Virginia, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Turtmannite: (Mn,Mg)25.5[(V,As)O4]3(SiO4)3[AsO3]xO5-5x(OH)20+x
Comments: Orange-brownish grains of turtmannite in matrix. Location: Pipji Glacier, Turtmanntal (Turtmann Valley), Wallis (Valais), Switzerland. Scale: Picture size 4 mm. © Thomas Witzke / Abraxas-Verlag
Tuscanite: K(Ca,Na)6(Si,Al)10O22(SO4,CO3,(OH)2)·(H2O) Augite: (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
Comments: Translucent tuscanite microcrystal in in vug in low-Fe augite (var. fassaite). Location: Pitigliano Quarry, Grosseto, Tuscany, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Tuzlaite: NaCaB508(0H)2·3(H2O)
Comments: Prismatic colorless crystals of tuzlaite. Location: Niedersachswerfen, Nordhausen, Harz Mts, Thuringia, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Tychite: Na6Mg2(CO3)4(SO4)
Comments: Nearly transparent tychite crystal. Location: Searles Lake, San Bernardino County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Tyretskite: Ca2B5O9(OH)·(H2O)
Comments: Gray granular tyretskite coating. Location: Kazakhstan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species