Mineral Specimen Images (T)

Tellurite: TeO2

Comments: Scaly yellow tellurite on white quartz.
Location: Mina Bambollita, Moctezuma, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tellurite: TeO2

Comments: Prismatic, reddish brown tellurite crystal clusters to 5-6mm in a vug,lined with drusy quartz.
Location: Bambolla Mine, Moctezuma, Sonora, Mexico. Scale: Picture Size 2 cm.
© Rob Lavinsky

Tellurium: Te

Comments: Crystalline native tellurium on quartz.
Location: Rosia Montana (Verespatak), Transylvania, Romania. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Tellurium: Te  
Empressite: AgTe

Comments: Bronze-colored microcrystals of empressite with bright native tellurium crystals.
Location: Rex mine, Boulder County, Colorado, USA. Scale: 1.9 x 1.4 x 0.7 cm.
© Richard Dale / Dale Minerals

Tellurobismuthite: Bi2Te3

Comments: Platy hexagonal metallic crystals of tellurobismuthite to 3+ mm. in matrix.
Location: Boliden, Skellefteå, Västerbotten, Sweden. Scale: 2.7x1.6x0.7 cm.
© Richard Dale / Dale Minerals

Tellurobismuthite: Bi2Te3

Comments: Metallic tellurobismuthite crystal fragment.
Location: Boliden, Vasterbotten, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Telluronevskite: Bi3TeSe2

Comments: Granular, irregular, metallic grains of telluronevskite in white matrix.
Location: Poruba pod, Vihorlat Mts. in the Slovak Republic. Scale: Picture Size 2 cm.
© Fabre Minerals

Telluronevskite: Bi3TeSe2  
Ingodite: Bi(S,Te)  
Nevskite: Bi(Se,S)

Comments: Intergrown metallic grains of ingodite, telluronevskite, and nevskiite.
Location: Poruba pod Vihorlatom, Vihorlat Mountains, Kosice Slovak Republic. Scale: Specimen Size 2.8 × 1.7 × 1 cm.
© Fabre Minerals

Telluropalladinite: Pd9Te4  
Kotulskite: Pd(Te,Bi)  
Keithconnite: Pd3-xTe(x=0.14 to 0.43)

Comments: Polyphase grain of (1) ferroan platinum corroded by (2) Pt(Fe,Cu) and overgrown by (5) telluropalladinite, an unknown (6) Pd-Te-Fe-Si-O phase, (7) Fe-hydroxide and (8) a Ca-Mn-Fe silicate with inclusions of (3) kotulskite and (4) keithconnite. (BGR).
Location: Stream sediments of rivers in the vicinity of the original discovery of the Merensky Reef on the farm Maandagshoek close to Burgersfort in the Eastern Bushveld, South Africa.. Scale: See Image.
© Federal Institute for Geosciences and Natural Resources

Temagamite: Pd3HgTe3  
Borovskite: Pd3SbTe4  
Merenskyite: (Pd,Pt)(Te,Bi)2

Comments: Borovskite (Bvk) - temagamite (Tmg) - merenskyite (Mrk) composite grain included in chalcopyrite (Ccp). (CanMin, v 42, p 674).
Location: McBratney high-grade PGE-Au occurrence, Bear Lake mafic unit, Proterozoic Flin Flon greenstone belt, Manitoba, Canada. Scale: See Image.
© Canadian Mineralogist

Tengerite-(Y): Y2(CO3)3·2-3(H2O)

Comments: White microcrystalline tengerite-(Y) seams on matrix.
Location: Evans-Lou Quarry, Quebec, Canada. Scale: Specimen Size 2x3 cm.
© Diederik Visser

Tengerite-(Y): Y2(CO3)3·2-3(H2O)

Comments: Pearly white platy tengerite-(Y) crystals in radial sprays to 2mm and fine layers on matrix. Partially replaced by an unidentified green mineral with bright blue centers that is probable decrespignyite-(Y).
Location: Paratoo Cu mine, Mt Lofty Ranges, South Australia, Australia. Scale: Overall: 4.5 x 1 x 4 cm.
© Tom Loomis / Dakota Matrix

Tennantite: (Cu,Fe)12As4S13  
Calcioandyrobertsite-1M: KCaCu5(AsO4)4[As(OH)2O2]·2(H2O)

Comments: Vein of blue calcioandyrobertsite in massive dark gray tennantite. The vein of calcioandyrobertsite extends for 0.8cm.
Location: Tsumeb Mine, Tsumeb, Namibia. Scale: Specimen size 1.1 x 0.5 cm.
© John Veevaert

Tennantite: (Cu,Fe)12As4S13

Comments: Crystals of dark gray tennantite on white quartz.
Location: Concepcion del Oro, Zacatecas, Mexico. Scale: 6 x 5.5 cm.
© Fabre Minerals

Tennantite: (Cu,Fe)12As4S13  
Schaurteite: Ca3Ge++++(SO4)2(OH)6·3(H2O)

Comments: Bright white silky fibrous schaurteite on dark tennantite.
Location: Tsumeb, Oshikoto, Namibia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tennantite: (Cu,Fe)12As4S13

Comments: Micro-quartz coated, dark gray tennantite on quartz. Former Sussman Tsumeb specimen.
Location: Tsumeb, Namibia. Scale: Crystal size 5 cm.
© John Schneider

Tenorite: CuO  
Chrysocolla: (Cu,Al)2H2Si2O5(OH)4·n(H2O)

Comments: Lustrous black botryoidal Tenorite mostly covering a sky-blue massive chrysocolla matrix.
Location: 79 mine, Banner district, Pinal Co., Arizona. Scale: 5.5 x 3 cm.
© Dan Weinrich

Tephroite: Mn2SiO4

Comments: Sharp crystals of tephroite to 1.2 cm across.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Picture size 5 cm.
© John Veevaert

Tephroite: Mn2SiO4  
Ericssonite: BaMn++2Fe+++O[Si2O7](OH)  
Orthoericssonite: BaMn2(Fe+++O)Si2O7(OH)

Comments: Dark brown ericssonite, intergrown with orthoericssonite, with pink rhodonite, light brown diopside (var. schefferite) and gray tephroite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tephroite: Mn2SiO4  
Johnbaumite: Ca5(AsO4)3(OH)

Comments: Violet crystalline massive johnbaumite with brown tephroite.
Location: Jacobsberg, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species