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bismuth

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Journal Article
Published: 28 January 2021
The Canadian Mineralogist (2020) 58 (6): 717–732.
... minerals (biotite, ilmenite), either from the pegmatite or from the host granite. § Corresponding author e-mail address : rskoda@sci.muni.cz 8 2 2020 2 10 2020 2020 bismuthinite alteration intragranitic NYF pegmatite Potrerillos granite Bismuth is a typical...
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Journal Article
Journal: Geology
Published: 05 June 2020
Geology (2020) 48 (9): 939–943.
... maps. Scale bars are 1 µm. Abbreviations: bl—bismuthide liquid; ccp—chalcopyrite; chr—chromite; cpx—clinopyroxene; nbs—nickel bismuth sulfide; pn—pentlandite; sg—silicate glass; sl—quenched sulfide liquid. A high-resolution version of the figure is available in the Supplemental Material (see footnote...
FIGURES
Journal Article
Published: 01 February 2020
Russ. Geol. Geophys. (2020) 61 (2): 174–195.
... the mineral composition of ores by modern methods, recognize and describe the main gold mineral assemblages, and present detailed data on the chemical composition of native gold and sulfide minerals and their isotope composition. We have established that gold–pyrite–chalcopyrite–arsenopyrite and gold–bismuth...
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Journal Article
Published: 01 June 2019
Russ. Geol. Geophys. (2019) 60 (6): 583–601.
... where deposits of many metals such as molybdenum, tungsten, tin, gold, silver, bismuth, iron, copper, antimony, lead, zinc, boron, fluorite and uranium are concentrated. The metallogeny of this territory was first reviewed in detail by S.S. Smirnov (1961) , who established the belt-based location...
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Journal Article
Published: 01 March 2019
American Mineralogist (2019) 104 (3): 459–462.
... two new occurrences in the Apuan Alps and its 8 Å crystal structure . Mineralogical Magazine , 81 , 811 – 831 . Ciobanu , C.L. , and Cook , N.J. ( 2000 ) Intergrowths of bismuth sulphosalts from the Ocna de Fier Fe-skarn deposit, Banat, Southwest Romania . European Journal...
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Journal Article
Published: 19 November 2018
Geochemistry: Exploration, Environment, Analysis (2019) 19 (3): 245–254.
... for mass 209 on the bismuth standard and the subsequent shift to 209 Bi 1 H. Commonly, the term ‘isobaric’ mass is not accurate, as di- or triatomic molecules tend to have slightly higher or lower masses than a single element. For example, polonium is a chalcogen and would therefore behave like...
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Journal Article
Published: 15 May 2018
Mineralogical Magazine (2018) 82 (4): 993–1005.
..., terrywallaceite, vikingite, treasurite, eskimoite and Bi-rich andorite-group minerals) and other bismuth sulfosalts (izoklakeite, cosalite and Bi-rich jamesonite) in quartz gangue. The mineral occurs as lath shaped crystals or anhedral grains up to 80 µm × 70 µm, growing together in aggregates up to 200 µm × 150...
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Journal Article
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 569–589.
.... As expected for a bismuth-richer phase, the R max values are higher by about 3% on average than the R max values of oscarkempffite, although the difference varies with the wavelength. Opposite is true for the R min values, what we explain by suggesting that the orientations of the optically analyzed...
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Journal Article
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 581–592.
... and geocronite were found in the vugs of these veins. Finally, some Ag sulfosalts have been identified in the quartz lensoid veins oriented SW-NE ( i.e. , diaphorite and pyrargyrite − Frizzo & Simone, 1995 ). marcobaldiite new mineral sulfosalt crystal structure lead antimony arsenic bismuth...
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Journal Article
Published: 01 May 2018
Mineralogical Magazine (2018) 82 (S1): S307–S320.
... by intense microfissuring of the earlier minerals, deposition of more sulfides (galena, chalcopyrite and bismuthinite) in addition to native bismuth and sulfosalts (Pb-Bi-Ag dominant). The main episode of gold deposition coincides with Stage 3. Sample preparation and petrographic studies were undertaken...
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Journal Article
Published: 01 May 2018
Mineralogical Magazine (2018) 82 (S1): S199–S222.
..., monazite, xenotime, native bismuth and pyrite. The alteration processes were mainly albitization, muscovitization and kaolinitization. This leucogranite is peraluminous and P-poor, with 0.03–0.07 wt.% P 2 O 5 , 900–1500 ppm Rb, 30–65 ppm Cs, 120–533 ppm Li, 80–140 ppm Ta, 51–81 ppm Nb and up to 569 ppm...
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Journal Article
Published: 31 March 2018
The Canadian Mineralogist (2018) 56 (2): 113–127.
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Journal Article
Published: 01 August 2017
American Mineralogist (2017) 102 (8): 1622–1631.
...-exo- and endo-skarns and the formation of low-temperature vein and carbonate-replacement ores. Potentially, the most important ores occur in the Moutoulas prospect where the mineralization in retrograde skarn and quartz veins culminated with the deposition of native bismuth. A combination of fluid...
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Journal Article
Journal: Economic Geology
Published: 01 June 2017
Economic Geology (2017) 112 (4): 993–1010.
... understood. In this contribution, we demonstrate that magnetite can be a significant host mineral for gold. Skarn ores from the giant Beiya Au deposit (323 t Au at 2.47 g/t), southwest China, contain abundant nanometer- to micronsized gold hosted by magnetite. A range of bismuth minerals (e.g., native...
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Journal Article
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 477–484.
..., 425, 395, 325, 250, 155 and 140 cm –1 , but the bands have some relative intensity differences and are displaced from those in the kyawthuite spectrum. The differences in band positions are consistent with the partial substitution of antimony into the bismuth site that is observed in the structure...
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Journal Article
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 679–688.
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Journal Article
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 695–705.
... and bismuth beads, all supplied by the Aldrich Chem. Co. (with a 99.999% purity). The starting mixture was first melted at 1000°C for two days. The product of melting was then ground in an agate mortar under acetone and held at 200, 400 and 600°C for 75 days. The samples were quenched by dropping the capsule...
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Series: GSA Special Papers
Published: 01 September 2016
DOI: 10.1130/2016.2522(08)
Journal Article
Published: 01 August 2016
Mineralogical Magazine (2016) 80 (5): 809–817.
...(31)(182). Comparison with gustavite, andorite and roshchinite confirms its independence as a mineral species. * E-mail: dan.topa@nhm-wien.ac.at 07 04 2014 28 08 2015 © 2016 The Mineralogical Society 2016 Studies of the mixed antimony-bismuth members of the lillianite...
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Journal Article
Published: 01 June 2016
Mineralogical Magazine (2016) 80 (4): 647–657.
... = 0.037 on the basis of 1269 observed reflections. It consists of Bi–O polyhedra and SO 4 tetrahedra. Bismuth polyhedra are connected each to other to form Bi–O sheets parallel to (001). Successive sheets are linked together by SO 4 groups and hydrogen bonds. Tavagnascoite is the Bi-analogue...
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