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Taaffeite: Magnesiotaaffeite-6N3S: (Mg,Fe++,Zn)2Al6BeO12 Magnesiotaaffeite-2N2S: Mg3Al8BeO16
Comments: BSE image of magnesiotaaffeite-6N3S (Mgt-6N3S) with a central lamella of magnesiotaaffeite-2N2S (Mgt-2N2S). Other minerals Spl: spinel; Chl: clinochlore. Location: Polymetamorphic dolomite marble at Eastern Alps, Stubenberg, Styria, Austria. (CanMin, v46:1195). Scale: See Image. © Canadian Mineralogist
Tacharanite: Ca12Al2Si18O33(OH)36 Phillipsite-Na: (Na,K,Ca)1-2(Si,Al)8O16·6(H2O)
Comments: Spherical tacharanite aggregates on phillipsite crystals. Location: Espalion, Aveyron, France. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Tachyhydrite: CaMg2Cl6·12(H2O)
Comments: Translucent pink tinted granular tachyhydrite. Location: Stassfurt, Sachsen-Anhalt, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Tadzhikite-(Ce): Ca4(Ce,Y)2(Ti,Al,Fe+++,[ ])2[Si4B4O22](OH)2
Comments: Brown crystal of tadzhikite-(Ce) with baratovite, polylithionite and zektzerite in matrix. Location: Dara-I-Pioz, Tajikistan. Scale: Specimen Size 1.5x2 cm. © Diederik Visser
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
Taenite: gamma-(Fe,Ni)
Comments: Massive taenite, altering, intermixed with kamacite, in meteorite. Location: Agtalilik Meteorite, Melville Bay, Greenland. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Taenite: gamma-(Fe,Ni) Kamacite: alpha-(Fe,Ni) Troilite: FeS
Comments: Polished and acid etched slice, with crust, illustrating Widmanstaaten lines, with taenite darker areas between kamacite crystals, with tarnished troilite inclusions, in fine octahedrite meteorite. Location: Gibeon Meteorite, found 1836, Great Namaqualand, Hardap, Namibia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Taimyrite: (Pd,Cu,Pt)3Sn Atokite: (Pd,Pt)3Sn
Comments: Photomicrograph (oil immersion) of atokite and taimyrite intergrowth inside tetraauricupride reaction rim on Pt-Fe alloy. Outlined section shows atokite relics within taimyrite. (CanMin, v 42, p 610). Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia,. Scale: See Image. © Canadian Mineralogist
Tainiolite: KLiMg2Si4O10F2
Comments: Micaceous tainiolite aggregate. Location: Magnet Cove, Hot Spring County, Arkansas, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Takedaite: Ca3(BO3)2
Comments: Translucent granular takedaite. Location: Fuka, Okayama, Japan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species