Mineral Specimen Images (T)

Mineral Specimen Images (T)
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Mineral Specimen Images (T) With 512 Images

Theophrastite Image

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Theophrastite: Ni(OH)2  
Chromite: Fe++Cr2O4

Comments: Green pearly scaly theophrastite coatings on massive dark chromite.
Location: Vermion Region, near Thessaloniki, Kedriki Makedhonia, Greece. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Theophrastite Image

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Theophrastite: Ni(OH)2  
Chromite: Fe++Cr2O4

Comments: Green pearly scaly theophrastite coatings on massive dark chromite.
Location: Vermion Region, near Thessaloniki, Kedriki Makedhonia, Greece. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thermessaite Image

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Thermessaite: K2[AlF3SO4]

Comments: BSE image of thermessaite crystals. (CanMin v46:693).
Location: La Fossa crater, Vulcano, Aeolian Islands, Italy. Scale: See Image.
© Canadian Mineralogist

Thermessaite Image

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Thermessaite: K2[AlF3SO4]

Comments: BSE image of thermessaite crystals. (CanMin v46:693).
Location: La Fossa crater, Vulcano, Aeolian Islands, Italy. Scale: See Image.
© Canadian Mineralogist

Thermonatrite Image

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Thermonatrite: Na2CO3·(H2O)

Comments: Granular thermonatrite.
Location: Eruption of 1859, Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thermonatrite Image

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Thermonatrite: Na2CO3·(H2O)  
Nacaphite: Na(Na,Ca)2(PO4)F

Comments: Sparse pale yellow-brown microcrystal and crystalline nacaphite with white thermonatrite on a dark matrix.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thermonatrite Image

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Thermonatrite: Na2CO3·(H2O)

Comments: Granular thermonatrite.
Location: Eruption of 1859, Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thermonatrite Image

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Thermonatrite: Na2CO3·(H2O)  
Nacaphite: Na(Na,Ca)2(PO4)F

Comments: Sparse pale yellow-brown microcrystal and crystalline nacaphite with white thermonatrite on a dark matrix.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thomasclarkite-(Y) Image

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Thomasclarkite-(Y): (Na,Ce)(Y,REE)(HCO3)(OH)3·4(H2O)

Comments: Transparent, yellowish crystal of thomasclarkite-(Y).
Location: Mt. St. Hilaire, Quebec, Canada. Scale: 0.75 mm.
© John Veevaert

Thomasclarkite-(Y) Image

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Thomasclarkite-(Y): (Na,Ce)(Y,REE)(HCO3)(OH)3·4(H2O)

Comments: Transparent, yellowish crystal of thomasclarkite-(Y).
Location: Mt. St. Hilaire, Quebec, Canada. Scale: 0.75 mm.
© John Veevaert

Thometzekite Image

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Thometzekite: Pb(Cu,Zn)2(AsO4)2·2(H2O)

Comments: Pale olive-green colored thometzekite crusts on quartz.
Location: Moldovo. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thometzekite Image

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Thometzekite: Pb(Cu,Zn)2(AsO4)2·2(H2O)

Comments: Pale olive-green colored thometzekite crusts on quartz.
Location: Moldovo. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thomsenolite Image

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Thomsenolite: NaCaAlF6·(H2O)  
Cryolite: Na3AlF6

Comments: Massive, white cryolite with solution cavities lined with prismatic Thomsenolite crystals.
Location: Ivigtut, Greenland. Scale: .
© John Veevaert

Thomsenolite Image

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Thomsenolite: NaCaAlF6·(H2O)  
Cryolite: Na3AlF6

Comments: Massive, white cryolite with solution cavities lined with prismatic Thomsenolite crystals.
Location: Ivigtut, Greenland. Scale: .
© John Veevaert

Thomsonite-Ca Image

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Thomsonite-Ca: NaCa2Al5Si5O20·6(H2O)  
Stilbite-Ca: NaCa4[Al8Si28O72]·n(H2O) (n=28-32)

Comments: Peach colored stilbite crystals to 3.5 cm in size is hosting two finely crystallized balls of powdery white thomsonite.
Location: Near Jalgaon, Maharashtra State, India. Scale: Picture size 15 cm.
© Dan Weinrich

Thomsonite-Ca Image

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Thomsonite-Ca: NaCa2Al5Si5O20·6(H2O)  
Stilbite-Ca: NaCa4[Al8Si28O72]·n(H2O) (n=28-32)

Comments: Peach colored stilbite crystals to 3.5 cm in size is hosting two finely crystallized balls of powdery white thomsonite.
Location: Near Jalgaon, Maharashtra State, India. Scale: Picture size 15 cm.
© Dan Weinrich

Thomsonite-Sr Image

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Thomsonite-Sr: (Sr,Ca)2Na[Al5Si5O20]·7(H2O)

Comments: White, columnar-acicular crystals of shomsonite-Sr lining a vug.
Location: Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture Size 0.5 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Thomsonite-Sr Image

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Thomsonite-Sr: (Sr,Ca)2Na[Al5Si5O20]·7(H2O)

Comments: White, columnar-acicular crystals of shomsonite-Sr lining a vug.
Location: Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture Size 0.5 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Thorbastnasite Image

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Thorbastnasite: Th(Ca,Ce)(CO3)2F2·3(H2O)  
Rontgenite-(Ce): Ca2(Ce,La)3(CO3)5F3

Comments: Tny white, acicular thorbastnasite crystals to less than 1 mm in sprays. The thorbastnasite forms the cores the 'needles', with white epitaxial rontgenite-(Ce) coating.
Location: Mont Saint-Hilaire, Quebec, Canada. Scale: Needle Size < 1 mm.
© William Lechner / Dakota Matrix

Thorbastnasite Image

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Thorbastnasite: Th(Ca,Ce)(CO3)2F2·3(H2O)  
Rontgenite-(Ce): Ca2(Ce,La)3(CO3)5F3

Comments: Tny white, acicular thorbastnasite crystals to less than 1 mm in sprays. The thorbastnasite forms the cores the 'needles', with white epitaxial rontgenite-(Ce) coating.
Location: Mont Saint-Hilaire, Quebec, Canada. Scale: Needle Size < 1 mm.
© William Lechner / Dakota Matrix
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