Mineral Specimen Images (T)

Tamarugite: NaAl(SO4)2·6(H2O)  
Metasideronatrite: Na2Fe+++(SO4)2(OH)·(H2O)

Comments: Orange metasideronatrite with white tamarugite.
Location: Willi Agatz Mine, Dresden, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Tamarugite: NaAl(SO4)2·6(H2O)

Comments: Small white flakes of Tamarugite.
Location: Carola Mine, Freital, near Dresden, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Tancoite: HNa2LiAl(PO4)2(OH)

Comments: SEM image of tabular tancoite crystals.
Location: Tanco Mine, Manitoba, Canada. Scale: Field of View 1 mm.
© Royal Ontario Museum

Taneyamalite: (Na,Ca)(Mn++,Mg)12[(Si,Al)6O17]2(O,OH)10

Comments: Dark brown silky fibrous taneyamalite vein in manganese ore.
Location: Taneyama Mine, Toyo, Kumamoto, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tangeite: CaCu(VO4)(OH)

Comments: Green. rosette crystalline-aggregates of tangeite on sandstone matrix.
Location: Thompson, Grand County, Utah, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Tantalaeschynite-(Y): (Y,Ce,Ca)(Ta,Ti,Nb)2O6

Comments: Nearly pure fragment of tantalaeschynite-(Y).
Location: Raposa Pegmatite, São José do Sabugi, Paraíba, Northeast Region, Brazil. Scale: Specimen Size 1 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Tantalcarbide: TaC

Comments: Dark gray metallic tantalcarbide grains in sand.
Location: Nizhnii Tagil Massif, Sverdlovsk District, Middle Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tantalite-(Fe): Fe++Ta2O6

Comments: Rounded black crystal of ferrotantalite.
Location: Mount Surprise, Queensland, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tantalite-(Fe): Fe++Ta2O6

Comments: Blocky, crystalline aggregate of ferrotantalite crystals weighing over one kilogram.
Location: Ecuador, Minas Gerais, Brazil. Scale: 10 x 6 x 5 cm.
© Rob Lavinsky

Tantalite-(Mn): MnTa2O6

Comments: Floater crystal of doubly terminated, brilliant, with a little red tint manganotantalite.
Location: Pech, Kunar, Afganistan. Scale: 5.5 x 7 cm.
© Fabre Minerals

Tantalite-(Mn): MnTa2O6  
Calciotantite: Ca(Ta,Nb)4O11

Comments: SEM image showing calciotantite (CT), manganotatntalite (MTT), microlite (MT) and lithiowodginite (LW) association.
Location: Granitic pegmatites, Kalba, Kazakhstan. Scale: Scale bar 100 µm and 10 µm.
© Diederik Visser

Tanteuxenite-(Y): (Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6

Comments: Irregular fragment of tanteuxenite-(Y).
Location: Liha, Maniema, Democratic Republic of Congo (Zaïre). Scale: Specimen Size 1.5 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Tapiolite: (Fe,Mn)(Ta,Nb)2O6  
Tapiolite-(Fe): (Fe++,Mn++)(Ta,Nb)2O6

Comments: Twinned, brown, dipyramid crystal of ferrotapiolite.
Location: Sapucaia district, Galileia, Minas Gerais, Brazil. Scale: 4.2x3.1x3.1 cm.
© Richard Dale / Dale Minerals

Tapiolite: (Fe,Mn)(Ta,Nb)2O6  
Tapiolite-(Mn): (Mn++,Fe++)(Ta,Nb)2O6

Comments: Black opaque resinous massive manganotapiolite.
Location: Skogbole Mine, Kimito, Turku ja Pori, Finland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tapiolite: (Fe,Mn)(Ta,Nb)2O6  
Tapiolite-(Fe): (Fe++,Mn++)(Ta,Nb)2O6

Comments: Ferrotapiolite crystal in white quartz and mica matrix.
Location: Quixabá Mine, Frei Martinho, Paraíba Brazil. Scale: Crystal size 1 x 0.8 cm.
© Fabre Minerals

Tapiolite-(Fe): (Fe++,Mn++)(Ta,Nb)2O6  
Tapiolite: (Fe,Mn)(Ta,Nb)2O6

Comments: Twinned, brown, dipyramid crystal of ferrotapiolite.
Location: Sapucaia district, Galileia, Minas Gerais, Brazil. Scale: 4.2x3.1x3.1 cm.
© Richard Dale / Dale Minerals

Tapiolite-(Fe): (Fe++,Mn++)(Ta,Nb)2O6  
Tapiolite: (Fe,Mn)(Ta,Nb)2O6

Comments: Ferrotapiolite crystal in white quartz and mica matrix.
Location: Quixabá Mine, Frei Martinho, Paraíba Brazil. Scale: Crystal size 1 x 0.8 cm.
© Fabre Minerals

Tapiolite-(Mn): (Mn++,Fe++)(Ta,Nb)2O6  
Tapiolite: (Fe,Mn)(Ta,Nb)2O6

Comments: Black opaque resinous massive manganotapiolite.
Location: Skogbole Mine, Kimito, Turku ja Pori, Finland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Taramellite: Ba4(Fe+++,Ti,Fe++,Mg)4(B2Si8O27)O2Clx (x=0 to 1)

Comments: Dark brown crystalline taramellite.
Location: Candoglia, Domo d'Ossola, Val Toce, Piedmonte, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Taramite: Na(CaNa)Fe++3AlFe+++[Si6Al2O22](OH)2

Comments: Taramite, variety mboziite, black microcrystal prisms in quartz.
Location: Foyaite Dike, Mbozi Syenite-Gabbro Complex, 50 miles south of Mbeya, Mbeya, Tanzania. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species