Mineral Specimen Images (T)

Tinzenite: (Ca,Mn,Fe)3Al2BO3Si4O12(OH)

Comments: Orange crystalline tinzenite with quartz and black braunite.
Location: Cassagne mine, near Chiavari, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tinzenite: (Ca,Mn,Fe)3Al2BO3Si4O12(OH)

Comments: Orange bladed aggregate of tinzenite crystals and clear quartz.
Location: Molinello mine, Val Graveglia, Italy. Scale: 5.8x3.6x3.3 cm.
© Richard Dale / Dale Minerals

Tiptopite: K2(Na,Ca)2Li3Be6(PO4)6(OH)2·(H2O)  
Montgomeryite: Ca4MgAl4(PO4)6(OH)4·12(H2O)

Comments: Clear, acicular crystals of tiptopite with red montgomeryite.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Tiptopite: K2(Na,Ca)2Li3Be6(PO4)6(OH)2·(H2O)  
Englishite: K3Na2Ca10Al15(PO4)21(OH)7·26(H2O)  
Montgomeryite: Ca4MgAl4(PO4)6(OH)4·12(H2O)

Comments: Red montgomeryite lath-like crystals to 1mm in 2mm rosettes associated with clear, acicular sprays of tiptopite to 0.75mm and white cottonball-like crystals of englishite to 0.2mm.
Location: Tip Top mine, Custer Co., South Dakota, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Tiragalloite: Mn++4As+++++Si3O12(OH)

Comments: Orange crystals of tiragalloite in matrix.
Location: Molinello Mine, Val Graveglia, Liguria, Italy. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Tischendorfite: Pd8Hg3Se9  
Tiemannite: HgSe  
Chrisstanleyite: Ag2Pd3Se4

Comments: Polished section (PPL) showing tischendorfite (T, cream), clausthalite (Cl, off-white), tiemannite (Tie, gray), ankerite (black) and chrisstanleyite (C, greenish buff to pale brown).
Location: Eskaborner Stollen (Eskeborn Adit) at Tilkerode, Harz, Mountains, Germany. (CanMin v40:739). Scale: Picture Size 275 µm.
© Canadian Mineralogist

Tisinalite: Na3H3(Mn++,Ca,Fe)TiSi6(O,OH)18·2(H2O)

Comments: Yellow tisinalite in syenite pegmatite matrix.
Location: Mount Alluaiv, Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tistarite: Ti2O3  
Khamrabaevite: (Ti,V,Fe)C

Comments: BSE image showing one tistarite (Ti2O3) grain along with khamrabaevite (TiC) and corundum. The cross marks where the electron back-scattered diffraction pattern (shown in Fig. 4) was collected. (AmMin, v94:841.
Location: From inside a chondrule from the Allende meteorite. Scale: See Image.
© American Mineralogist

Titanite: CaTiSiO5

Comments: Several twinned green crystals of Titanite (sphene) on matrix.
Location: Capelinha, Minas Gerais, Brazil. Scale: 5.5x5x3.5 cm.
© Isaias Casanova / IC Minerals

Titanite: CaTiSiO5  
Amesite: Mg2Al(SiAl)O5(OH)4

Comments: Green titanite (sphene) crystals on purple chromamesite (clinochlore?).
Location: Saranovskaya Deposit, Middle Ural Mountains, Russia. Scale: Picture size 7 cm.
© Dave Barthelmy

Titanowodginite: (Mn++,Fe++)(Ti,Sn)(Ta,Nb)2O8

Comments: Black crystals of titanowodginite in matrix.
Location: Tanco Mine (Bernic Lake Mine), Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Titantaramellite: Ba4(Ti,Fe+++,Fe++,Mg)4(B2Si8O27)O2Clx X=0 TO 1, with Ti > Fe

Comments: Dark brownish black titantaramellite crystal in quartz.
Location: Rush Creek, Fresno County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Titantaramellite: Ba4(Ti,Fe+++,Fe++,Mg)4(B2Si8O27)O2Clx X=0 TO 1, with Ti > Fe  
Alforsite: Ba5(PO4)3Cl  
Sanbornite: BaSi2O5  
Celsian: BaAl2Si2O8

Comments: SEM image showing alforsite (al). Matrix composed by lamellar sanbornite (sa) and granular quartz (q). Rectangular crystal in the upper right corner is titantaramellite (ti) and isometric crystals included in sanbornite are celsian (ce).
Location: Trumbull Peak, near Incline, Mariposa Co., California, USA. Scale: See Image.
© Pavel M. Kartashov

Tlalocite: Cu10Zn6(Te++++O3)(Te++++++O4)2Cl(OH)25·27(H2O)

Comments: Green, spherulitic aggregates of Tlalocite on matrix.
Location: Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Tlapallite: H6(Ca,Pb)2Cu3(SO4)(Te++++O3)4(Te++++++O6)

Comments: Green, microcrystalline druse of tlapallite grains.
Location: Bambollita Mine (Oriental Mine), Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Tobelite: (NH4,K)Al2(Si3Al)O10(OH)2

Comments: Fine grained massive tobelite.
Location: Tobe, Ehime, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tobermorite: Ca5Si6O16(OH)2·4(H2O)

Comments: Bright white tobermorite with blue calcite, USA.
Location: Crestmore Quarry, Riverside County, California. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tochilinite: 6Fe0.9S·5(Mg,Fe++)(OH)2

Comments: Grayish-black, metallic wires of tochilinite on matrix.
Location: Brosso Mine, Ivrea, Piedmont, Italy. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Tocornalite: (Ag,Hg)I (?)

Comments: Pale yellow granular tocornalite in matrix.
Location: Block 14 Opencut, Broken Hill, Yancowinna Co., New South Wales, Australia. Scale: See Image.
© Rruff Database

Todorokite: (Na,Ca,K)2(Mn++++,Mn+++)6O12·3-4.5(H2O)  
Opal: SiO2·n(H2O)

Comments: Dendritic todorokite in white opal.
Location: Brosso Mine, Ivrea, Torino, Piemonte, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species