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Minerals

6323 results

Laguna Manantiales meteorite. A cross-section showing Widmanstätten patterns. Photograph taken at the Natural History Museum, London. Mineral

Taenite

taenite

Formula
(Ni,Fe)
Mineral

Taikanite

taikanite

Formula
Sr3BaMn²⁺2(Si4O12)O2
A selection of backscatter electron (BSE) images of platinum-group minerals identified in the till samples. (a) Braggite ((Pt,Pd,Ni)S); (b) Cooperite (PtS); (c) Moncheite ((Pt,Pd)(Te,Bi)2); (d) Stillwaterite (Pd8As3); (e) Mertieite-II (Pd8(Sb,As)3); (f) Taimyrite ((Pd,Cu,Pt)3Sn); (g) Cabriite (Pd2SnCu); (h) Isomertieite (Pd11Sb2As2); (i) Paolovite (Pd2Sn); (j) Potarite (PdHg); (k) Stibiopalladinite (Pd5Sb2); (l) Platinum (Pt). The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. Mineral

Taimyrite

taimyrite

Formula
(Pd,Pt)9Cu3Sn4
The tainiolite xl spans ~ 2 mm. Found April 2000 (Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada). MOB coll. This is the most euhedral xl on the specimen but it’s most inconveniently stuck in a cavity behind pectolite xls with fibrous terminations. The tainiolite is actually pale greenish/tan/gray with a silvery luster but it wasn’t possible to show that in this view. The tainiolite does not fluoresce – i.e. it isn’t polylithionite. But it is exceptionally well formed for the species at MSH. From the same (visually) verified find as http://www.mindat.org/photo-471616.html There is a stereo child photo. Mineral

Tainiolite

tainiolite

Formula
KLiMg2Si4O10F2
Grey glassy almost massive aggregates of the extremely rare cerium mineral taipingite-(Ce) (IMA 2018-123a) from the famous Bastnas mine that is the second known locality for the mineral and associated to actinolite. Analyzed specimen by SEM/EDS, see copy enclosed. Found and analyzed in July 2022. Mineral

Taipingite-(Ceca)

taipingite-(CeCa)

Formula
(Ce7Ca2)􏰀Mg(SiO4)3[SiO3(OH)]4F3
Mineral

Takanawaite-(Y)

takanawaite-(Y)

Formula
YTaO4
A few black aggregates of the very rare Mn mineral takanelite in a small pieces of white matrix from a locality in Texas (Marfa, Presidio County, Texas, United States of America). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Takanelite

takanelite

Formula
(Mn²⁺,Ca)2ₓ(Mn⁴⁺)1-ₓO2·0.7H2O
Locality: Fuka mine, Fuka, Bicchu-cho (Bitchu-cho), Takahashi City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan Dimensions: 16 mm x 9 mm x 8 mm White massive Takedaite from type locality; photo and collection Fernando Brederodes. Mineral

Takedaite

takedaite
Pale blue takovite. Steve Sorrell collection. From Rocky's Reward Ni Mine, Leinster, Leonora Shire, Western Australia, Australia Mineral

Takovite

takovite

Formula
Ni6Al2(OH)16[CO3]·4H2O
Outstanding black prismatic crystals of the very rare borate mineral takeuchiite from the TL and only known locality worldwide (Långban, Filipstad, Värmland County, Sweden). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Takéuchiite

takéuchiite

Formula
Mg2Mn³⁺O2(BO3)
Quartz, Talc Locality: Specksteingrube, Goepfersgrun, Fichtelgebirge, Bavaria, Germany Size: small cabinet, 7.0 x 5.5 x 4.9 cm Talc pseudo after Quartz I LOVE THESE THINGS! WHAT A NEAT EXAMPLE OF INTERESTING MINERALOGFY, having talc replace a hard mineral like quartz !?!This is an incredibly rare pseudomorph of talc after quartz on massive talc from Germany. These pseudomorphs are quite old, having come out of the ground prior to the 1930�s. Unique to this location, the crystals are very sharp and have a soft vitreous luster. One of the hardest pseudomorphs to find in any condition and this piece is nearly perfect, AND OF LARGE SIZE. As you can imagine, this is a "must have" for any pseudomorph collector. Ex. P. Pohndorf collection (1931). E. Mitchell Gunnell and Hauck labels included with piece. Mineral

Talc

Formula
Mg3Si4O10(OH)2
Mohs
1
Colour
White, green, grey
Talmessite Locality: Ightem Mine (Irhtem Mine), Ightem, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco Picture width 1.5 mm. Collection and photograph Christian Rewitzer Mineral

Talmessite

talmessite

Formula
Ca2Mg(AsO4)2·2H2O
Putoranite and Talnakhite Locality: Talnakh, near Norilsk in Russia Exposed in the Mineralogical Museum of University Bonn, Germany Mineral

Talnakhite

talnakhite

Formula
Cu9Fe8S16
Tamaite ore exhibited at the Mining Museum of Akita University Mineral

Tamaite

tamaite

Formula
(Ca,K,Ba,Na)3-4Mn24(Si,Al)40(O,OH)112·nH2O
Tamarugite Tamarugite hand-specimen from Ghoroghchi area, Meimeh, Isfahan provinence, Iran Mineral

Tamarugite

tamarugite

Formula
NaAl(SO4)2·6H2O
Mineral

Tamboite

tamboite

Formula
Fe³⁺3(OH)(H2O)2(SO4)(Te4+O3)3(Te4+O(OH)2)(H2O)3
Back-scattered electron images showing inclusions of platinum-group minerals. These are hosted by placer grains of Os–Ir–(Ru) alloy, labeled Os–Ir (i.e., the mineral osmium rich in Ir). Tamuraite (Tmr) is intimately associated with Rh-bearing pentlandite (Pn) and a member of the laurite–erlichmanite series (Lrt). Mineral

Tamuraite

tamuraite
Sharp orange crystal of the extremely rare Fe-Ce molybdate mineral tancaite-(Ce) from the TL and only known locality worldwide (Punta de Su Seinargiu, Sarroch, Cagliari Province, Sardinia, Italy) in a white contrasting matrix. Ex. Erich Laskowski collection (USA). Mineral

Tancaite-(Ce)

tancaite-(Ce)

Formula
FeCe(MoO4)3·3H2O
Mineral

Tancoite

tancoite

Formula
LiNa2Al(PO4)(HPO4)(OH)
Black crystals of the very rare mineral taneyamalite from the type (Taneyama Mine, Kumamoto Prefecture, Kyushu Region, Japan) and one of the only five known localities worldwide. Mineral

Taneyamalite

taneyamalite

Formula
(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44
Outstanding green crystals of tangdanite (IMA 2011-096) from this classic Spanish locality for the mineral (Villahermosa del Rio, Castellón, Valencian Community, Spain). Unique combination of elements (the only Ca-Cu arsenate-sulphate mineral known). Mineral

Tangdanite

tangdanite

Formula
Ca2Cu9(AsO4)4(SO4)0.5(OH)9·9H2O
Tangeite Locality: Manganese Mine, Copper Harbor, Keweenaw Co., Michigan, USA Original description: Collected 2011 by D. Maietta. Field of view is 0.73 mm horizontal. Lens: Lens: Nikon M Plan 20 F-stop: N/A Mounting: Normal, extension = 210 mm FOV: 0.73 mm Lighting: Dual fiber partially diffused Processing: CombineZP do-stack retouched with manual stack composition Mineral

Tangeite

tangeite

Formula
CaCu(VO4)(OH)
Exhibit in the University of Arizona Mineral Museum - University of Arizona - Tucson, Arizona, USA. Mineral

Taniajacoite

taniajacoite

Formula
SrCaMn³⁺2Si4O11(OH)4·2H2O
Mineral

Tanohataite

tanohataite

Formula
LiMn2Si3O8(OH)