Skip to content
Mineralati

Minerals

6323 results

FOV 1.3 x 1.6 mm. Via Excalibur. MOB coll. The whole extent of the thornasite cluster is only ~ 0.5 x 0.9 mm. Tiny gray xls of thornasite inconveniently tucked away in a cavity lined with gray natrolite do not make for a great photo op. Updated Jan 2010 with better color fidelity. But it's still not a great photo. From: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada. Mineral

Thornasite

thornasite

Formula
Na12Th3(Si8O19)4·(H2O)12·6H2O
Mineral

Thorneite

thorneite

Formula
Pb6(Te2O10)(CO3)Cl2(H2O)
Thorogummite Mineral

Thorogummite

thorogummite
Mineral

Thorosteenstrupine

thorosteenstrupine

Formula
(Ca,Th,Mn)3Si4O11F·6H2O
Thortveitite Locality: Ljoslandsåsen (Hålandsgruva), Iveland, Aust-Agder, Norway (Locality at mindat.org) Size: miniature, 4 x 2 x 2 cm Thortveitite This ugly beast is one of the most impressive examples of the species, that I think could exist. It is a 3-dimensional, sharp, well-formed, 4cm crystal of this rare scandium-containing species. It is from the noted collection of Jean Behier. Mineral

Thortveitite

thortveitite

Formula
Sc2Si2O7
Mineral

Thorutite

thorutite

Formula
(Th,U,Ca)Ti2(O,OH)6
Threadgoldite Locality: Arcu su Linnarbu, Capoterra, Cagliari Province, Sardinia, Italy Pale yellow tabular crystals of Threadgoldite. Analysed by S.Möckel. Field of view 2 mm. Specimen and photo Leon Hupperichs. Mineral

Threadgoldite

threadgoldite

Formula
Al(UO2)2(PO4)2(OH)·8H2O
Mineral

Thunderbayite

thunderbayite

Formula
TlAg3Au3Sb7S6
These mineral images are free to use how you wish. Mineral

Thénardite

thénardite

Formula
Na2SO4
Deep pink microcrystals of the extremely rare thérèsemagnanite associated to pale pink crystals of guarinoite from the only known locality worldwide for theresemagnanite and one of the two known localities for guarinoite worldwide: Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Cote d'Azur, France. Both minerals are two of the most sought after species from Cap Garonne. Both species are Co-Zn-Ni sulphates with different ratios of Co-Zn-Ni and described in 1993 . Theresemagnanite has more cobalt, so its color it's deeper pinkish, and it is then possible to differenciate from guarinoite, that is pale pink. Ex Vandenbroucke Museum collection from Waregem, Belgium Mineral

Thérèsemagnanite

thérèsemagnanite
Mineral

Tianhongqiite

tianhongqiite
Mineral

Tianhuixinite

tianhuixinite

Formula
(MoO3)3·H2O
Tiberiobardiite, thin, pseudo-hexagonal crystals, up to 40 µm in size, with iron oxides. Cretaio, Prata, Massa Marittima, Grosseto, Tuscany. Holotype specimen, #19900, collection of the Museo di Storia Naturale of the University of Pisa. Image obtained from: Biagioni, C., Pasero, M., Zaccarini, F. (2018) Tiberiobardiite, Cu9Al(SiO3OH)2(OH)12(H2O)6(SO4)1.5·10H2O, a New Mineral Related to Chalcophyllite from the Cretaio Cu Prospect, Massa Marittima, Grosseto (Tuscany, Italy): Occurrence and Crystal Structure. Minerals 2018: 8(4): 152. https://doi.org/10.3390/min8040152 The article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).” Mineral

Tiberiobardiite

tiberiobardiite

Formula
{Cu9Al[SiO3(OH)]2(OH)12(H2O)6}(SO4)1.5·10H2O
Tiemannite Locality: Marysvale District (Marysvale Uranium area), Piute County, Utah, USA (Locality at mindat.org) Size: 5 x 5 x 3.9 cm. Tiemannite is a very rare mercury selenide: simply HgSe. This is the classic locality for crystals: tiny black modified tetrahedra. This specimen hosts a few superb, sharp crystals, unusually free of alteration coatings, on matrix. The crystals are small, under 2mm, but very sharp and eye-visible. Another vug, with smaller crystals, lies beneath them. Ex. Philadelphia Academy of Sciences Collection. Mineral

Tiemannite

tiemannite

Formula
HgSe
Yellow single crystal of the extremely rare mineral tienshanite from the type and only known locality worldwide. From: Dara-i-Pioz Glacier, Tien Shan Mountains, Districts of the Republican Subordination, Tajikistan. Mineral

Tienshanite

tienshanite

Formula
KNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(O,OH,F)11
Crystals of tiettaite from the TL and only known locality worldwide in Khibiny (Khibiny Massif, Murmansk Oblast, Russian Federation). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Tiettaite

tiettaite

Formula
(Na,K)17FeTiSi16O29(OH)30·2H2O
Outstanding white crystal group of the extremely rare strontium mineral tikhonenkovite from the type and only known locality worldwide in Russia: Karasug, Tannu-Ola Range, Tuva Republic, Russian Federation. Probably analyzed by the former owner of the specimen (the Vandenbroucke Museum), but the analysis is no longer available. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Tikhonenkovite

tikhonenkovite

Formula
SrAlF4(OH)(H2O)2
Well formed orange brown grischunite crystals associated to almost white tilasite crystals. Grischunite has only been found in this locality worldwide, so it's a real rarity. From: Falotta, Tinzen, Grischun, Switzerland. Mineral

Tilasite

tilasite

Formula
CaMg(AsO4)F
Figure 5. SEM-BSE image of the area shown in the left rectangle in Figure 3.The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Mineral

Tilkerodeite

tilkerodeite
Tilleyite Locality: Crestmore quarries, Crestmore, Riverside County, California, USA Original description: A 4.3 by 4.0 cms mass. JSS specimen and photograph. Mineral

Tilleyite

tilleyite

Formula
Ca5Si2O7(CO3)2
Mineral

Tillmannsite

tillmannsite

Formula
(Ag3Hg)(VO4,AsO4)
Apple green crystals of the very rare tellurium mineral timroseite from the type locality (Bird Nest Drift, San Bernardino County, California, United States of America). Mineral

Timroseite

timroseite

Formula
Pb2Cu5(TeO6)2(OH)2
Tin Locality: Badiko District, Bauchi State, Nigeria (Locality at mindat.org) Size: 0.7 x 0.4 x 0.3 cm. A HISTORIC and noteworthy native tin thumbnail from an UNCOMMON locality - the Badiko District of Nigeria! Native tin is RARE worldwide and this is an excellent quality piece. This silver-gray, subhedral was collected in 1893 and for many years resided in the Sorbonne Collection in Paris (according to previous owner). John Saul, a collector of native elements who runs ruby mines in Kenya, executed a major trade with the Sorbonne and recently I ended up with this VERY RARE element specimen from this locality. Mineral

Tin (Native)

tin (native)

Formula
Sn
7.9 x 7.9 x 1.3 cm. Tinaksite and charosite are very rare complex silicates and the Murunskii Massif is the Type Locality for these colorful species (Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic, Russia). An impressive, 7.8 cm tapered column of parallel-growth, lustrous and translucent, honey-brown tinaksite crystals is aesthetically set in a very colorful, rich lilac, foliated plate of waxy charoite. A fine, showy and rich combination specimen of these rarities from the Fersman Museum in Moscow. The label is from the Soviet era. Mineral

Tinaksite

tinaksite

Formula
K2Na(Ca,Mn²⁺)2Ti[O|Si7O18(OH)]