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Minerals

6323 results

Mineral

Beaverite-(Zn)

beaverite-(Zn)

Formula
Pb(Fe³⁺2Zn)(SO4)2(OH)6
Bechererite Locality: Broken Hill South Mine (BHS Mine), Broken Hill, Yancowinna County, New South Wales, Australia (Locality at mindat.org) Field of view 6 mm. Specimen and photo Leon Hupperichs. Mineral

Bechererite

bechererite
Mineral

Beckettite

beckettite

Formula
Ca2V6Al6O20
Becquerelite, Uranophane - alpha, Uraninite Locality: Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Central area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) (Locality at mindat.org) Size: 5 x 4.5 x 2.2 cm. Shinkolobwe is the type locality for Becquerelite where it forms lathe-like, yellow to orange, flat-terminated crystals. Here the mineral is associated with Uranophane in very tiny needles. Sometimes the crystals cluster together like shown in the photo, and they reach on this specimen 5 mm. This is a good reference piece for a locality that is closed since more than 50 years. Mineral

Becquerelite

becquerelite

Formula
Ca(UO2)6O4(OH)6·8(H2O)
Mohs
2.5
Mineral

Bederite

bederite
Mineral

Beershevaite

beershevaite
Very nice white crystals of the rare mineral of simple chemistry behoite (Be(OH)2) from a Norwegian locality: A/S Granit Quarry, Tuften, Tvedalen, Larvik, Vestfold, Norway. Mineral

Behoite

behoite

Formula
Be(OH)2
Mohs
4
These mineral images are free to use how you wish. Mineral

Beidellite

beidellite

Formula
(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 * nH2O
Mineral

Belakovskiite

belakovskiite

Formula
Na7(UO2)(SO4)4(SO3OH)(H2O)3
Silvery metallic crystal aggregates of the very rare Cu-Hg mineral belendorffite from the TL in Moschellandsberg (Landsberg, Obermoschel, Donnersbergkreis, Rhineland-Palatinate, Germany). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Belendorffite

belendorffite

Formula
Cu7Hg6
Brown crystals of this rare niobium mineral belkovite from the type locality in Russia (Vuoriyarvi Massif, Northern Karelia, Murmansk Oblast, Russian Federation). Only two known localities worldwide. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Belkovite

belkovite

Formula
Ba3(Nb,Ti)6(Si2O7)2O12
Bellbergite Locality: Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel Mts, Rhineland-Palatinate, Germany Colourless to white crystals of Bellbergite (analysed). Field of view 2 mm. Specimen and photo Leon Hupperichs. Mineral

Bellbergite

bellbergite

Formula
(K,Ba,Sr)2Sr2Ca2(Ca,Na)4(Si,Al)36O72·30H2O
Mineral

Bellidoite

bellidoite

Formula
Cu2Se
A single tabular almost perfect light green Bellingerite (nearly 2 mm.) with a diminute Gypsum xx beside, gently poached on matrix. The typical striations of this specie may be seen along the xx, and according to the reflections of bulb lightening. From Chuquicamata pit, Chuquicamata District, El Loa Province, Antofagasta Region, Chile. Mineral

Bellingerite

bellingerite

Formula
Cu3(IO3)6·2H2O
Mohs
4
Mineral

Belloite

belloite

Formula
Cu(OH)Cl
Belmonteite, aggregates of thin tabular crystals, white in color, with calcite; in the center, at the top, bluish spherulae of the mahnertite-like mineral can be observed. Gambatesa mine, Ne, Graveglia Valley, Genoa Province, Liguria, Italy. Holotype specimen, catalogue number MO720. Mineralogical collection of the Dipartimento di Scienze della Terra, dell'Ambiente e della Vita of the University of Genoa. Photo Cristian Biagioni. Mineral

Belmonteite

belmonteite

Formula
CaMn2(AsO4)2·7H2O
Mineral

Belogubite

belogubite

Formula
CuZn(SO4)2·10H2O
:Extraordinario ejemplar laminar de belomarinaita, un extremadamente raro sulfato de potasio y sodio, de buen tamaño, translúcido y con formas cristalinas bien visibles. Se refiere tanto por química y estructura a la aphthitalita. Estos sulfatos se forman en depósito salinos y en las fumarolas volcánicas, como es el caso. Este ejemplar procede de la localidad tipo para la especie. Ex. M. Murashko specimen. Yacimiento: Fisura de la erupción del Tolbachik 2012-2013, Plosky Tolbachik volcano, Tolbachik volcano, Kamchatka Krai, Rusia Medidas: 2 x 1.2 x 0.1 cm. Mineral

Belomarinaite

belomarinaite

Formula
KNa(SO4)
Mineral

Belousovite

belousovite

Formula
KZn(SO4)Cl
Belovite-(Ce), Umbozerite, Sérandite, Shkatulkaite (FOV 7.1 x 4.7 mm) Locality: Shkatulka pegmatite, Umbozero mine (Umbozerskii mine), Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Description: Orange sérandite (on the left), pink ussingite (top), greenish belovite-(Ce) (center). I see deep REE absorption lines. It’s a bit hard to tell exactly where they are coming from, but I’m fairly sure it is from the greenish xl. Per Pavel's inspection of the photo, he agrees that it is belovite. The xl is about 1¾ mm long. The black stuff (on the right) has a conchoidal fracture and looks a bit like steenstruoine-(Ce, but is is altered umbozerite (as confirmed by Pavel from inspection of the photo.) The white stuff on the umbozerite is probably shkatulkalite. (Pavel did not comment on this.) Mineral

Belovite-(Ce)

belovite-(Ce)

Formula
NaCeSr3(PO4)3F
Mohs
5
Mineral

Belovite-(La)

belovite-(La)

Formula
NaLaSr3(PO4)3F
Mohs
5
Pale brown crystals of belyankinite from the type locality (Khibiny Massif, Kola, Russian Federation) and one of the only four known localities worldwide. Mineral

Belyankinite

belyankinite

Formula
Ca1-2(Ti,Nb)5O12 * 9H2O (?)
Bementite Locality: near Golconda, Humboldt County, Nevada Size: small cabinet, 6.1 x 3.4 x 1.6 cm Bementite A rare locality specimen of bementite, named after noted collector Clarence Bement. I had never seen material from Nevada before. The accompanying label notes that it is here "all the brown material" in which case, this would be quite rich. Ex. John White Collection. Mineral

Bementite

bementite

Formula
Mn7Si6O15(OH)8
Mohs
6
Mineral

Benauite

benauite

Formula
SrFe³⁺3(HPO4,PO4)2(OH)6