1-20 OF 92 RESULTS FOR

tellurium

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 May 2020
Russ. Geol. Geophys. (2020) 61 (5-6): 611–633.
.../files/2017_ geo_labs_brochure.pdf ). The concentrations of the major elements (as well as Cu, Ni, and Co) were obtained according to a standard XRF analysis. Gold, silver, selenium, and tellurium were determined by an ultra-trace ICP-MS method following an aqua regia digestion procedure...
FIGURES | View All (13)
Journal Article
Published: 01 May 2020
American Mineralogist (2020) 105 (5): 745–755.
... lingbaoite grain is about 30 × 12 μm in size. At least two stages of gold and telluride mineralization are recognized in the lingbaoite-bearing sample set. The first stage is characterized by the deposition of lingbaoite, native tellurium, and sylvanite, within the commonly observed mineral assemblages...
FIGURES | View All (9)
Journal Article
Published: 16 January 2020
The Canadian Mineralogist (2020) 58 (1): 85–97.
... a yellow-brown to brownish-black color, occurs as extremely cryptocrystalline (11–25 nm) material in thin films and breccia matrix fillings, and is associated with gold (native), tellurium (native), beyerite, clinobisvanite, and a variety of tellurium oxysalt minerals that include carlfriesite, eckhardite...
FIGURES | View All (7)
Journal Article
Journal: Economic Geology
Published: 01 June 2019
Economic Geology (2019) 114 (4): 771–786.
... these elements accumulate in pyrite and could be useful for discriminating ore deposit type. Similarly, the optimal Random Forests classifier was refined to not include Au. Tellurium, however, was not omitted from this classifier despite the lack of Te data from SEDEX deposits. The classifier has difficulty...
FIGURES | View All (5)
Journal Article
Published: 01 June 2019
Russ. Geol. Geophys. (2019) 60 (6): 583–601.
...-magnetite, pyrite-arsenopyrite-dolomite, chalcopyrite-galena-sphalerite with sulfosalts, disseminated and streaky with chalcopyrite-tellurium-bismuth and quartz-molybdenum mineralization ( Fig. 9 ). The sulfide content in ore bodies varies widely, reaching 5–10% in some areas. Gold was found in all textural...
FIGURES | View All (12)
Journal Article
Journal: Economic Geology
Published: 01 March 2019
Economic Geology (2019) 114 (2): 201–206.
... processing for combined selenium isotope and selenium-tellurium elemental investigation of the Earth’s igneous reservoirs : Geochemistry, Geophysics, Geosystems , doi.org/10.1002/2017GC007299 . Zack , T. , and Hogmalm , K.J. , 2016 , Laser ablation Rb/Sr dating by online chemical separation...
FIGURES | View All (6)
Journal Article
Published: 12 February 2019
Mineralogical Magazine (2019) 83 (4): 539–549.
... polyhedra and H 2 O groups fill the space between the layers. Tlapallite is only the second naturally occurring compound containing tellurium in both the 4 + and 6 + oxidation states with a known crystal structure, the other being carlfriesite, CaTe 4+ 2 Te 6+ O 8 . Carlfriesite is the predominant secondary...
FIGURES | View All (10)
Journal Article
Published: 01 February 2019
American Mineralogist (2019) 104 (2): 190–206.
..., 2 to 340 ppm Ag, 2 to 770 ppb Au, and 0.2 to 1000 ppm Cl. Tellurium abundances are highly variable within sulfides, which is likely due to the presence of telluride micro- or nano-phases. Based on morphology, composition, and the absence of monosulfide solid solution, the sulfides are interpreted...
FIGURES | View All (11)
Journal Article
Published: 01 January 2019
European Journal of Mineralogy (2019) 31 (1): 145–152.
... ) are a  = 7.240(2) Å, b  = 25.792(4) Å, c  = 3.8142(7) Å, V  = 712.2(4) Å 3 . The results are in agreement with that of single-crystal diffraction data. The a : b : c ratio calculated from the unit-cell parameters is 0.281:1: 0.148. Tewite new mineral tellurium tungsten average crystal structure...
FIGURES | View All (8)
Journal Article
Published: 01 December 2018
Mineralogical Magazine (2018) 82 (6): 1355–1367.
.... Eztlite, a secondary tellurium mineral from the Moctezuma mine, Mexico, is monoclinic, space group Cm , with a = 11.466(2) Å, b = 19.775(4) Å, c = 10.497(2) Å, β = 102.62(3)° and V = 2322.6(9) Å 3 . The chemical formula of eztlite has been revised to ${\rm Pb}_{\rm 2}^{2 +} {\rm Fe}_3^{3 +} $ (Te 4+ O 3...
FIGURES
Journal Article
Published: 01 June 2018
Mineralogical Magazine (2018) 82 (3): 649–674.
... Society of Great Britain and Ireland 2018 2018 Mineralogical Society of Great Britain and Ireland epithermal gold deposit Gaching ore occurrence AuSe Au(Te,Se,S) Au 2 Te 4 (Se,S) 3 unnamed phases Au oxide oxygen fugacity tellurium fugacity selenium fugacity sulfur fugacity...
FIGURES | View All (22)
Journal Article
Published: 01 May 2018
Mineralogical Magazine (2018) 82 (S1): S61–S87.
... in the Alto de la Blenda deposit. In the nearby Capillitas deposit, which is also part of the Farallón Negro volcanic district, Marquez-Zavalía and Craig ( 2004 ) described a complex telluride paragenesis that includes native tellurium, krennerite, calaverite, sylvanite, petzite, hessite and stützite...
FIGURES | View All (10)
Journal Article
Published: 31 March 2018
The Canadian Mineralogist (2018) 56 (2): 113–127.
FIGURES | View All (5)
Journal Article
Published: 01 August 2017
European Journal of Mineralogy (2017) 29 (4): 571–584.
Journal Article
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 695–705.
..., Prague). In order to prevent loss of material to the vapour phase, the free space in the tube was reduced by placing a closely fitting glass rod against the charge. A charge of ∼400 mg was carefully weighed out from the pure elements. We used, as starting chemicals, a nickel powder, a tellurium ingot...
FIGURES | View All (5)
Journal Article
Published: 01 May 2016
The Canadian Mineralogist (2016) 54 (3): 755–778.
... : jonas.silva@vmetais.com.br 17 April 2015 11 February 2016 © 2016 Mineralogical Association of Canada 2016 platinum-group minerals weathering nickel copper platinum-group elements palladium iodine tellurium rosettes elements mobility base metal sulfides There are many...
FIGURES | View All (13)
Journal Article
Published: 01 April 2016
Mineralogical Magazine (2016) 80 (2): 291–310.
... more complex minerals. As part of a broader study of tellurium mineralogy, we have reinvestigated the stereochemistry of Te ( Mills and Christy, 2013 ; Christy and Mills, 2013 ), and undertaken a comprehensive review of the structural diversity of Te oxysalt compounds ( Christy et al ., 2016...
FIGURES | View All (8)
Series: Reviews in Economic Geology, Reviews in Economic Geology
Published: 01 January 2016
DOI: 10.5382/Rev.18.09
EISBN: 9781629490922
... common critical element in alkaline igneous-rock related gold deposits is tellurium, which is enriched (>0.5%) in many deposits and could be considered a future commodity as global demand increases and if developments are made in the processing of Au-Te ores. It occurs as precious metal telluride...
FIGURES | View All (4)
Series: Reviews in Economic Geology, Reviews in Economic Geology
Published: 01 January 2016
DOI: 10.5382/Rev.18.10
EISBN: 9781629490922
... recovery of such elements from select epithermal, orogenic, or Carlin-type gold deposits. Antimony continues to be recovered from some orogenic gold deposits and tellurium could potentially be a primary commodity from some such deposits. Tellurium and indium in sphalerite-rich ores have been recovered...
FIGURES | View All (14)
Series: Reviews in Economic Geology, Reviews in Economic Geology
Published: 01 January 2016
DOI: 10.5382/Rev.18.11
EISBN: 9781629490922
FIGURES | View All (14)