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hubnerite

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Journal Article
Published: 01 March 1930
American Mineralogist (1930) 15 (3): 104–108.
... veinlets of hübnerite, which also lines small cavities in the rock. Mr. Bryant kindly furnished the following description: * Paper presented at the tenth annual meeting of the Mineralogical-Society of America, Washington, D.C., December 26, 1929. Copyright © 1930 by the Mineralogical Society...
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A) Transmitted-light photomicrograph of <b>hübnerite</b> crystal from the Morococh...
Published: 01 December 2018
Fig. 11. A) Transmitted-light photomicrograph of hübnerite crystal from the Morococha district with locations of laser ablation pits (white circles). Smaller holes locate ablated fluid inclusions. B) Element composition along a profile (analyses 1–11) perpendicular to growth banding. Reddish
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X-ray maps of Mg, Mn and W distributions in wolframite (<b>hübnerite</b>).
Published: 01 May 2018
Fig. 9. X-ray maps of Mg, Mn and W distributions in wolframite (hübnerite).
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Polarized FTIR spectra in the 3700–2700 cm −1  region of the pure <b>hübnerite</b>...
Published: 01 April 2017
Figure 6 Polarized FTIR spectra in the 3700–2700 cm −1 region of the pure hübnerite sample 1345, measured parallel to the direction of maximum absorption and parallel to the c and b axis direction, baseline-corrected and deconvoluted into single Voigt-shaped bands. The absorbance scale
Journal Article
Published: 01 April 2014
The Canadian Mineralogist (2014) 52 (2): 129–164.
... (beryl, chrysoberyl, bertrandite, euclase, trilithionite, Li-muscovite, petalite, pollucite), rare element-bearing oxide minerals (columbite-tantalite, bismutotantalite, Nb-rutile, cassiterite, hübnerite, qitianlingite), phosphate minerals (triplite, lithiophilite, Mn-rich apatite, xenotime, monazite...
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Journal Article
Published: 22 December 2020
Geochemistry: Exploration, Environment, Analysis (2021) 21 (1): geochem2020-048.
... studies, indicate that tellurides, fluorite, quartz, carbonates, roscoelite, tennantite-tetrahedrite, pyrite, sphalerite, muscovite, monazite, bastnäsite and hübnerite serve as exploration guides to ore. * Correspondence: pgspry@iastate.edu Several studies have used trace element data...
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Journal Article
Published: 01 July 2018
European Journal of Mineralogy (2018) 30 (4): 869–876.
..., Antananarivo Province, Madagascar. It occurs as tan to beige subhedral crystals, up to 1 mm in size, with a resinous luster, associated with quartz, tourmaline, orthoclase, Li-bearing mica, hübnerite, stibiotantalite, and an undetermined heftetjernite-like mineral. Electron-microprobe analysis...
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Journal Article
Published: 01 March 2018
European Journal of Mineralogy (2018) 30 (2): 205–218.
... in lepidolite, as grains up to 11 µm long, including fluorcalciomicrolite, columbite-(Mn) with Nb > Ta, hübnerite(?) and a possible Pb-bearing microlite (Ta > Nb). The oxides, together with the muscovite, are interpreted to be related to later hydrothermal reworking of the primary lepidolite–fluor-elbaite...
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BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübner...
Published: 01 April 2014
Fig. 11 BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübnerite, and zircon inclusions in garnet. Intermediate zone of LI2 pegmatite, assemblage of tourmaline replacing garnet. (B) Patchy-zoned porous manganocolumbite from the SMALL pegmatite. (C) Zoned, Bi-rich hübnerite
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BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübner...
Published: 01 April 2014
Fig. 11 BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübnerite, and zircon inclusions in garnet. Intermediate zone of LI2 pegmatite, assemblage of tourmaline replacing garnet. (B) Patchy-zoned porous manganocolumbite from the SMALL pegmatite. (C) Zoned, Bi-rich hübnerite
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BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübner...
Published: 01 April 2014
Fig. 11 BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübnerite, and zircon inclusions in garnet. Intermediate zone of LI2 pegmatite, assemblage of tourmaline replacing garnet. (B) Patchy-zoned porous manganocolumbite from the SMALL pegmatite. (C) Zoned, Bi-rich hübnerite
Image
BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübner...
Published: 01 April 2014
Fig. 11 BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübnerite, and zircon inclusions in garnet. Intermediate zone of LI2 pegmatite, assemblage of tourmaline replacing garnet. (B) Patchy-zoned porous manganocolumbite from the SMALL pegmatite. (C) Zoned, Bi-rich hübnerite
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BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübner...
Published: 01 April 2014
Fig. 11 BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübnerite, and zircon inclusions in garnet. Intermediate zone of LI2 pegmatite, assemblage of tourmaline replacing garnet. (B) Patchy-zoned porous manganocolumbite from the SMALL pegmatite. (C) Zoned, Bi-rich hübnerite
Image
BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübner...
Published: 01 April 2014
Fig. 11 BSE microphotographs of Nb, Ta, and W oxide minerals. (A) Columbite, hübnerite, and zircon inclusions in garnet. Intermediate zone of LI2 pegmatite, assemblage of tourmaline replacing garnet. (B) Patchy-zoned porous manganocolumbite from the SMALL pegmatite. (C) Zoned, Bi-rich hübnerite
Image
Polarized FTIR spectra of selected wolframite samples representing four cha...
Published: 01 April 2017
Figure 2 Polarized FTIR spectra of selected wolframite samples representing four characteristic types of OH spectra, measured on (010) faces, with the electric vector E of the polarized radiation vibrating parallel to the direction of maximum absorption. The spectrum of the hübnerite-dominated
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The wolframite structure viewed along the  b  axis, demonstrating the propo...
Published: 01 April 2017
hübnerite, and of the O2 oxygen position, related to the high-energetic band group around 3400 cm −1 in wolframite, respectively 3370 cm −1 in pure hübnerite (case A).
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Backscattered-electron images of subhedral crystals of hydrokenopyrochlore....
Published: 01 July 2018
, and a tiny xenomorphic inclusion of hübnerite. Type material MGL 080141 (a) and MGL 080142 (b).
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Polarized FTIR absorption spectra in the OH stretching vibrational region o...
Published: 01 April 2017
Figure 4 Polarized FTIR absorption spectra in the OH stretching vibrational region of the hübnerite-dominated sample 1318. ( a ) Measured at room temperature; ( b ) measured at 80 K parallel to the c axis and parallel to the direction of maximum absorption; the band at 3230 cm −1 (asterisk
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Back-scattered images from Ps 1  in the Ivonne vein. a) Zoned arsenopyrite ...
Published: 01 August 2011
Fig. 4 Back-scattered images from Ps 1 in the Ivonne vein. a) Zoned arsenopyrite (Apy) and stannite (Stn) crystals filling cavities. b) Cassiterite (Cst), ferrokësterite (Fks) and hübnerite (Hub) cross-cutting pyrite (Py). c) Pyrite (Py) and chalcopyrite (Ccp) crystals brecciated by cassiterite
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SEM photomicrographs of: ( a ) sample 1 before thermal treatment (scale bar...
Published: 01 June 2000
F ig . 4. SEM photomicrographs of: ( a ) sample 1 before thermal treatment (scale bar = 10 μm); ( b ) sample 1 heated to 1050°C (scale bar = 10 μm); ( c ) sample 3 heated to 1050°C (scale bar = 10 μm); ( d ) sample 5 heated up to 1050°C (scale bar = 100 μm). m = metal (W and Fe); h = hubnerite.