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lanthanum ores

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Journal Article
Journal: Economic Geology
Published: 01 December 2007
Economic Geology (2007) 102 (8): 1499–1510.
... on the hematite end member of the IOCG ore deposit model type. Copper and gold-bearing hematite-rich breccias formed by repetitive hydrothermal brecciation, milling, and explosive venting within a volcanic setting. High-pressure spalling, chemical corrosion of breccia clasts, and compositional layering within...
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Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1995
DOI: 10.5382/GB.24.08
EISBN: 9781934969779
... was attributed to surface enrichment (Bell, 1976). Samples collected by Bell (1976) of small drainage basins in the region contained up to 1000 ppm tin in heavy mineral concentrates that were also anomalous in gold, boron, lanthanum, niobium, beryllium, and copper (Figure 16 of Bell, Carpenter, and Feiss, 1980...
Image
Comparison of the forms of monazite from the high-grade ores of the Burannyi site, Tomtor deposit (a, c, e), with pseudomorphs of lanthanum phosphate after the Pseudomonas aeruginosa cells obtained in a laboratory experiment (b, d) and the cerium phosphate aggregate produced by precipitation of Ce by the bacteria Saccharomyces cerevisiae (f). b, (Langley and Beveridge, 1999); d, (Mullen et al., 1989); f, (Jiang et al., 2010).
Published: 01 June 2015
Fig. 14. Comparison of the forms of monazite from the high-grade ores of the Burannyi site, Tomtor deposit ( a , c , e ), with pseudomorphs of lanthanum phosphate after the Pseudomonas aeruginosa cells obtained in a laboratory experiment ( b , d ) and the cerium phosphate aggregate produced
Journal Article
Published: 01 October 2019
American Mineralogist (2019) 104 (10): 1469–1480.
... of the initial Mn-Fe ores that predetermined the possibility of the formation of lanthanum minerals in the Ushkatyn-III deposit. Gasparite-(La) from Mn ores of the Ushkatyn-III deposit and metamorphic rocks of the Wanni glacier have different geological settings and different formation conditions. Thus...
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Journal Article
Published: 01 May 2016
American Mineralogist (2016) 101 (5): 1125–1128.
... of formation of lanthanum perovskites from oxides (La 2 O 3 , Na 2 O, TiO 2 ), are −107.25 ± 2.56, −93.83 ± 6.06, −80.68 ± 5.93, and −33.49 ± 4.26 kJ/mol and enthalpies of formation from elements are −1614.05 ± 5.37, −1596.44 ± 7.68, −1594.03 ± 7.58, and −1577.56 ± 6.36 kJ/mol for Na 0.459 La 0.522 Ti 0.999 O...
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Journal Article
Journal: Elements
Published: 01 October 2012
Elements (2012) 8 (5): 355–360.
... their transport in the Earth's crust, their concentration, and their fractionation. © 2012 by the Mineralogical Society of America 2012 REE hydrothermal solubility speciation ore formation Carl Gustaf Mosander holding a blow-torch next to a bust of his mentor Jöns Berzelius. C ourtesy of the S...
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Journal Article
Published: 01 February 2015
American Mineralogist (2015) 100 (2-3): 598–601.
.... The mine is currently sealed, so samples of tremolite-diopside-epidote-quartz-garnet granofels, characteristic of the inner skarn, were collected with landowners permission from the tailings pile ( Berekian 2008 ). Although tailings are expected to be poor in ore minerals, rare scheelite crystals...
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Journal Article
Published: 01 July 2015
American Mineralogist (2015) 100 (7): 1578–1583.
... elements as copper or lead ( Golev et al. 2014 ). However, rare earths are not usually found in unique minerals or rich ores. Rather they are often present together in minor to trace concentrations in other minerals. This leads to the necessity of extracting and separating them from different kinds of ores...
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Journal Article
Published: 01 January 2025
Jour. Geol. Soc. India (2025) 101 (1): 87–96.
... identified this mineral in 1938 and termed it after the Bastnas mine in Sweden ( Babu et al., 2013 ). Bastnaesite includes enriched cerium, lanthanum and yttrium and is classified into four types ( Gaines et al., 1997 ; Kalatha et al., 2017 ) depending on the significant Rare Earth Element (REE), viz...
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Journal Article
Published: 01 April 2013
Jour. Geol. Soc. India (2013) 81 (4): 447–450.
...G. Nagendra Babu; M. Sai Baba; Mary K. Kumar; Yamuna Singh; P.V. Ramesh Babu; P.S. Parihar Abstract For the first time we report bastnaesite and hydroxyl bastnaesite (lanthanum cerium fluoro-carbonate) from the Kanigiri granite. The host granitoids are of A-type and vary in composition from quartz...
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Journal Article
Published: 01 December 2022
American Mineralogist (2022) 107 (12): 2242–2250.
...Anna M. Nikolenko; Konstantin M. Stepanov; Vladimir Roddatis; Ilya V. Veksler Abstract Bastnäsite [REE(CO 3 )F] is the main mineral of REE ore deposits in carbonatites. Synthetic bastnäsite-like compounds were precipitated from aqueous solutions by many different methods, but previous attempts...
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Journal Article
Published: 10 August 2021
Geochemistry: Exploration, Environment, Analysis (2021) 21 (3): geochem2021-024.
... Solonetz soils and the input of microfertilizers ( Liu et al. 2013 ; Lyubimova and Salpagarova 2020 ). The second group consists of the contamination of arable soils with Ln from various sources, i.e. ore mine waste and industrial emissions ( Delgado et al. 2012 ; Liang et al. 2014 ; Zhang et al...
Journal Article
Published: 01 January 2024
Jour. Geol. Soc. India (2024) 100 (1): 149.
...: lanthanum (La) to lutetium (Lu), in addition to scandium (Sc) and yttrium (Y), show similar physical and chemical properties and are characterized by high density, high melting point, high conductivity and high thermal conductance. Based on the structure of electron shell, REEs are subdivided into Light REE...
Journal Article
Published: 01 December 1971
Jour. Geol. Soc. India (1971) 12 (4): 311–317.
... and Venkateswaran to whom I am grateful. The samples were selected from Amba Dongar, Siriwasan, Panwad, Bakhatgarh and Dehi. Twenty samples were analysed for thirteen elements including barium, strontium, niobium, cerium, lanthanum, yttrium, zirconium, thorium, manganese, titanium, zinc, fluorine and phosphorus...
Journal Article
Published: 01 August 2012
Jour. Geol. Soc. India (2012) 80 (2): 295.
...P. V. Sukumaran Email: [email protected] 01 08 2012 Copyright © 2012 Geological Society of India 2012 Geological Society of India The rare earth elements (REEs) or lanthanides include 15 elements of the periodic table from lanthanum to lutetium. They are all metallic...
Journal Article
Published: 01 May 2025
Jour. Geol. Soc. India (2025) 101 (5): 581–590.
... to be utilised in the new technologies. They are primarily extracted from the ores and minerals like Bastnaesite, Loparite, Monazite, Xenotime and Rare Earth laterites which are produced through mining (Balram, 2019). On one hand, the REEs are essential elements required for the development of green energy...
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Journal Article
Published: 01 February 2002
American Mineralogist (2002) 87 (2-3): 262–278.
... their importance as tracers in a variety of geochemical processes ( Brookins 1989 ; Henderson 1985), the need to understand the genesis and chemical controls of REE hydrothermal ore deposition ( Taylor and Fryer 1982 ; Williams-Jones et al. 2000 ), and the use of the REE group as an analogue in studying...
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Journal Article
Published: 01 December 2008
European Journal of Mineralogy (2008) 20 (6): 1135–1139.
... (Thüringen), Germany. Until 1855, manganese and iron ores were mined at the Gottlob hill ( Scheven, 1990 ). The mineral occurs in hydrothermal baryte veins cutting a Lower Rotliegend (Autunian) conglomerate ( Seidel, 1995 ). Specimens of the new mineral were collected on old dumps. The Glücksstern mine...
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Journal Article
Published: 01 January 2004
European Journal of Mineralogy (2004) 16 (1): 111–116.
... ore with an average metal concentration of 33 % were mined at Kesebol along with minor amounts of Cu ore ( Geijer, 1961 ). The Kesebol ores are hosted by a metavolcanic rock of rhyolitic composition. This rock belongs to the Åmål group comprising ca 1.6 Ga old supracrustal rocks that constitute...
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Journal Article
Published: 01 September 2016
American Mineralogist (2016) 101 (9): 2051–2056.
...Dawei Feng; Radha Shivaramaiah; Alexandra Navrotsky Abstract The mineral loparite is the principal ore of the light rare earth elements (LREE) with solid solution compositions in the quaternary system perovskite-lueshite-tausonite-loparite (CaTiO 3 -NaNbO 3 -SrTiO 3 -Na 0.5 Ln 0.5 TiO 3 ) ( Ln = La...
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