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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
Tokkoite: K2Ca4[Si7O18(OH)](F,OH) Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O)
Comments: Yellow crystalline tokkoite intermixed with purple charoite (viewed cross-sectional to fiber direction). Location: Murun, Aldan, Republic of Sakha, Siberia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Tokyoite: Ba2Mn(VO4)2(OH)
Comments: Metallic reddish brown crystals of tokyoite (< 0.3 mm) on dark gray braunite matrix. Location: Gambatesa mine, Graveglia Valley, Genova, Italy. Scale: Picture size 4 mm. © Tom Loomis / Dakota Matrix
Tolbachite: CuCl2
Comments: Small orange-brownish crystals of tolbachite. Location: Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 2.5 mm. © Thomas Witzke / Abraxas-Verlag
Tolovkite: IrSbS
Comments: Dark gray metallic crystal of tolovkite embedded in epoxy. Location: Placer from Ust-Belsky Massif, Korjak Highand, Russia. Scale: See Image. © Rruff Database