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germanium

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Journal Article
Published: 20 July 2023
The Canadian Journal of Mineralogy and Petrology (2023) 61 (3): 549–567.
...Lei Wang; Yan Zhang; Runsheng Han Abstract Germanium (Ge), as a critical metal, is in high demand due to its growing usage in emerging industries and green technologies. The Sichuan-Yunnan-Guizhou Zn-Pb metallogenic region, located on the southwestern margin of the Yangtze block, is one of the most...
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Journal Article
Published: 21 February 2023
The Canadian Mineralogist (2022) 60 (6): 881–912.
..., Institute for Earth Sciences, Universitätsplatz 2, 8010 Graz, Austria 9 8 2021 17 3 2022 2022 economic geology hydrothermal veins Germany germanium gallium sphalerite According to present knowledge, significant hydrothermal vein mineralization occurs restricted...
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Journal Article
Published: 13 December 2021
The Canadian Mineralogist (2021) 59 (6): 1865–1886.
...-bearing. Germanium has been reported in concentrations of up 500 ppm in Fe-minerals from meteorites ( Bernstein 1985 ), although the nature of how Ge is bound is unclear ( i.e ., solid solution with Fe-Ni intermetallics or as discrete minerals). However, the discovery of new thiogermanates ( e.g...
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Journal Article
Published: 10 November 2021
Mineralogical Magazine (2021) 85 (6): 879–889.
...Vojtěch Ettler; Martin Mihaljevič; Ladislav Strnad; Radim Jedlicka; Bohdan Kříbek; Rob J. Bowell; Fred Kamona; Ben Mapani Abstract Gallium (Ga) and germanium (Ge) are technologically important critical elements. Lead blast furnace slags from Tsumeb, Namibia, comprise over two million metric tons...
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Journal Article
Published: 08 April 2020
The Canadian Mineralogist (2020) 58 (2): 191–201.
... and pearceite were differentiated by their chemistry. Although the presence of argyrodite in epithermal deposits with silver sulfosalts is relatively common, this first mention in Cerro Moro is highly encouraging for exploration for germanium, a critical element, which is also considered strategic by countries...
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Journal Article
Journal: Geology
Published: 17 December 2019
Geology (2020) 48 (3): 236–241.
..., this study shows that plastic deformation and subsequent syntectonic recrystallization of sphalerite (zinc sulfide, ZnS) led to the spatial redistribution of germanium (Ge): from a background level of a few hundreds of parts per million in undeformed primary sphalerite to tens of weight-percent...
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Journal Article
Published: 01 September 2019
European Journal of Mineralogy (2019) 31 (5-6): 983–997.
... Verlagsbuchhandlung, 70176 Stuttgart, Germany 2019 willemite germanium non-sulphide zinc deposits critical elements supergene The supergene zone of sulphide-rich ore deposits has long been a focus for the mining industry, as fractionation processes due to weathering can lead to significant metal...
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Journal Article
Published: 01 March 2019
European Journal of Mineralogy (2019) 31 (2): 325–333.
...-rich sphalerite from the Tres Marias Zn–Pb–Ge deposit in Mexico and auriferous arsenopyrite from the Ashanti Au mine in Ghana are investigated. Sphalerite from Tres Marias contains Ge concentrations of up to 1430 μg/g and is characterised by elevated Fe contents. Germanium is homogeneously distributed...
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Journal Article
Published: 01 January 2019
Russ. Geol. Geophys. (2019) 60 (1): 86–96.
...V.I. Naidko; V.A. Makarov; D.G. Koz’min; A.F. Shimanskii; A.I. Fertikov Abstract — Integrated geological and geochemical studies were performed for lignite from the Yenisei middle reaches, represented by carbonized fragments of trees with high germanium contents. Geochemical characteristics...
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Journal Article
Published: 01 May 2018
Mineralogical Magazine (2018) 82 (S1): S89–S114.
..., goethite and hematite. Germanium occurs at ppm levels in W1 and W2, and in scarcely detectable amounts in hemimorphite, goethite and hematite. Indium has low concentrations in goethite and hematite. These different deportments among the various phases are probably due to the different initial Ga, In and Ge...
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Journal Article
Published: 01 May 2018
Mineralogical Magazine (2018) 82 (S1): S61–S87.
... of the fluids fluctuated during ore deposition suggesting different fluid pulses (system rejuvenation and/or boiling). The enrichment in Te, Se and Bi enrichment is supportive of a magmatic contribution to the ore fluid, while graphite in the metamorphic basement could be the source of germanium, although...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP435.2
EISBN: 9781786202901
...% of the Al concentration, the remaining Al needs to be balanced by H. The ratio of Li/H-compensated Al centres seems to depend on the Li activity and the pH in the aqueous solution. Germanium concentrations in quartz cements are slightly higher than the crustal average and they show a weak correlation...
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Journal Article
Published: 01 October 2017
Mineralogical Magazine (2017) 81 (5): 1151–1159.
... to the geology of Argentina. * E-mail: luca.bindi@unifi.it 26 9 2016 26 10 2016 © 2017 The Mineralogical Society 2017 omariniite new mineral species copper-iron-zinc-germanium-sulfide electron-microprobe analyses reflectance data crystal structure La Rosario vein Capillitas...
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Journal Article
Published: 01 July 2017
The Canadian Mineralogist (2017) 55 (4): 799–820.
... 2017 12 June 2017 © 2017 Mineralogical Association of Canada 2017 Colombia emerald belts euclase “trapiche” texture trace-elements REE germanium geological formation Emerald and euclase are located in the western and eastern emerald belts of Colombia ( Fig. 2...
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Journal Article
Journal: Geology
Published: 01 February 2017
Geology (2017) 45 (2): e407.
Journal Article
Journal: Geology
Published: 01 February 2017
Geology (2017) 45 (2): e408.
Journal Article
Published: 01 January 2017
Reviews in Mineralogy and Geochemistry (2017) 82 (1): 601–656.
...Olivier J. Rouxel; Béatrice Luais © 2017 Mineralogical Society of America 2017 Germanium (Ge) is a trace element in the Earth’s crust and natural waters, averaging about 1.6 ppm in rocks and minerals ( El Wardani 1957 ; Bernstein 1985 ) and 75 picomol/L in seawater ( Froelich...
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Journal Article
Published: 01 September 2016
The Canadian Mineralogist (2016) 54 (5): 1261–1284.
... deposition. Electron microprobe and LA-ICP-MS analyses reveal complex chemical zoning in the sphalerites together with coupling of two main groups of trace elements: copper, germanium, and gallium; and iron and cadmium. The zoning is interpreted in terms of substitution mechanisms using different equations...
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Series: Reviews in Economic Geology
Published: 01 January 2016
DOI: 10.5382/Rev.18.11
EISBN: 9781629490922
... to a maximum of 1,870 ppm have been recovered from Suiyo ( Noguchi et al., 2007 ) and Brothers ( de Ronde et al., 2011 ). Concentrations exceeding 17 ppm Ge are considered to be anomalous. Germanium concentrations above 30 ppm have been reported from Brothers ( de Ronde et al., 2011 ). In contrast...
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Journal Article
Published: 01 November 2015
American Mineralogist (2015) 100 (11-12): 2533–2544.
... 10 2014 03 5 2015 © 2015 Mineralogical Society of America 2015 First-row transition elements (FRTEs) copper (Cu) gallium (Ga) germanium (Ge) mineral/melt partitioning melting peridotite pyroxenite MORB Variations of elemental and isotopic compositions in primitive...
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