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Minerals

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Pink microcrystals of burckhardtite, an extremely rare tellurium mineral from Moctezuma, that is the type locality and only one of the few localities known worldwide (Moctezuma Mine, Moctezuma, Moctezuma Municipality, Sonora, Mexico). Mineral

Burckhardtite

burckhardtite

Formula
Pb2(Fe³⁺Te⁶⁺)(AlSi3O8)O6
Mineral

Burgessite

burgessite

Formula
Co2(H2O)4[AsO3(OH)]2(H2O)
Mineral

Burkeite

burkeite

Formula
Na4(SO4)(CO3)
Mineral

Burnettite

burnettite

Formula
CaVAlSiO6
Mineral

Burnsite

burnsite
Mineral

Burovaite-Ca

burovaite-Ca

Formula
(Na,K)4Ca2(Ti,Nb)8[Si4O12]4(OH,O)8·12H2O
Burpalite si a zirconium mineral. Brown crystals of the very rare mineral burpalite from the type locality in Burpala (Siberia, Russian Federation). Only 4 localities known worldwide. Mineral

Burpalite

burpalite

Formula
Na2CaZr(Si2O7)F2
Mineral

Burroite

burroite

Formula
Ca2(NH4)2(V10O28)·15H2O
Yellow microcrystals of the extremely rare Sn mineral from the type locality in Morocco (Wadi Beht, El Hammam, Meknès Prefecture, Fès-Meknès Region, Morocco) and only one of the two known localities worldwide. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Burtite

burtite

Formula
Ca[Sn(OH)6]
Blue sharp crystals of the extremely rare henmilite associated to very pale pink buryatite from the only known locality worldwide for henmilite (Fuka Mine, Bitchu-cho, Takahashi, Honshu Island, Japan). Henmilite is a Ca-Cu borate and buryatite is a Ca sulphate-borate that has only been found in two localities worldwide. Mineral

Buryatite

buryatite

Formula
Ca3(Si,Fe,Al)(SO4)[B(OH)4]O(OH)5·12H2O
Mineral

Buseckite

buseckite

Formula
(Fe,Zn,Mn)S
Mineral

Buserite

buserite

Formula
Na4Mn14O27·21H2O (?)
Mineral

Bushmakinite

bushmakinite

Formula
Pb2Al(PO4)(VO4)(OH)
Mineral

Bussenite

bussenite

Formula
Ba4(Na,☐)2(Fe²⁺,Na)2Ti2(Si2O7)2(CO3)2O2(OH)2(H2O)2F2
Xls to < 2 mm. Via Arnaldo Brunetti (ex Jean-Pierre Beckerich). MOB coll This is a remarkably rich specimen for the species. I thank Arnaldo for parting with it! The matrix is analcime covered by tiny catapleiite xls. Modified by CombineZP. From: Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada Mineral

Bussyite-(Ce)

bussyite-(Ce)

Formula
(Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4
Mineral

Bussyite-(Y)

bussyite-(Y)

Formula
(Y,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4
Bustamite (Specimen size 7 x 5 cm) Locality: Meldon Quarry (British Rail Quarry; British Railways Quarry; B. R. Quarry), Okehampton area (Northern Dartmoor), Devon, England, UK Mineral

Bustamite

bustamite

Formula
CaMn²⁺(Si2O6)
Mineral

Butianite

butianite

Formula
Ni6SnS2
Butlerite, Parabutlerite Locality: Kavir-e-Sagand, Saghand (Sagand; Saqand), Yazd Province, Iran (Locality at mindat.org) Size: 3.9 x 3.7 x 3.4 cm. Butlerite and parabutlerite are very rare hydrated iron sulfates. Lustrous, translucent, orange-brown butlerite and parabutlerite prisms to 2 mm richly cover matrix on this fine example of these rare species. This piece is from the very less well-known Kavir-e-Sagand area of Iran and was collected in the 1970s expeditions by Pierre Bariand of the Sorbonne. Rarely available material, today. Mineral

Butlerite

butlerite

Formula
Fe³⁺(SO4)(OH)·2H2O
Buttgenbachite Field of view: 4 mm Locality: Likasi Mine (TL), Kambove District, Haut-Katanga, Congo Mineral

Buttgenbachite

buttgenbachite

Formula
Cu19(NO3)2(OH)32Cl4·nH2O
Mineral

Buynite

buynite

Formula
TlPb14As17S40
:Locality: Diabazovoye, Homyel' Province, Belarus Size: 0.1 × 0.1 × 0.1 cm Description: A small (but good size for the species) grain of this rare complex REE silicate. It shows a flattened orange lenticular fragment from the Holotype specimen. In a protective capsule. Byelorussite-(Ce) was found in a salband of a quartz vein in lower Proterozoic metasomatized granosyenites. Mineral

Byelorussite-(Ce)

byelorussite-(Ce)

Formula
NaBa2Ce2MnTi2[Si4O12]2O2(F,OH)·H2O
Mineral

Bykovaite

bykovaite

Formula
(Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2·3.5H2O
Vanadium and vanadium-bearing minerals in the Bragino massive sulfide ores: (a–d) Fe-V oxides; (e,f) Ti-V oxides; (g,h) Sc-V-bearing crichtonite group minerals (a–i), secondary electron and back-scattered electron images, respectively; Ab, albite; Byr, byrudite; Chl, chlorite; Cou, coulsonite; Cri, cricthonite group minerals; Fbr, ferberite; Ilm, ilmenite; Kyz, kyzylkumite; Ms, muscovite Mol, molybdenite; Po, pyrrhotite; Py, pyrite; Qz, quartz; Rt, rutile; Sd, siderite; Sen, senaite; Sp, sphalerite). The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Mineral

Byrudite

byrudite

Formula
(Be,□)(V³⁺,Ti)3O6