10 LIVROS EM INGLÊS RELACIONADOS COM «EUXENITE»
Descubra o uso de
euxenite na seguinte seleção bibliográfica. Livros relacionados com
euxenite e pequenos extratos deles para contextualizar o seu uso na literatura.
1
Mineralogy And Geology of Rare Earths in China
22 Euxenite- ( Y ) and Poly erase- ( Y ) Formula (Y, Ca, Ce, U, Th)(Nb, Ti, Ta)206
and (Y, Ca, U, Th)(Nb, Ti)206 Composition RE-bearing meta-titano-niobate
mineral. The general formula can be expressed as AB206, where A represents
REE ...
Zhang Peishan, Yang Xueming, Tao Kejie, 1996
2
Atlas of the Textural Patterns of Ore Minerals and ...
S. S. Augustithis. Fig. 868 Euxenite with an alteration margin in graphic pegmatite
. e = unaltered euxenite. am = alteration margin of euxenite. Harrar, Ethiopia. Oil-
immersion with one nicol. Fig. 869 Euxenite with an alteration margin in graphic ...
3
Second Report on a Cooperative Investigation of the ...
There it is intergrown with clau- sthalite and digenite in some nodules of
chalcocite. (Coleman and Delevaux, 1957.) E0XENITE (Y,Ca,Ce,U,Th) (Cb.Ta.Ti
^O. Chtrffee County. — Trout Creek Pass area (loc. 6). Masses of euxenite as
much as 8 ...
4
U.S. Geological Survey professional paper
Semenov and others (1961); Vlasov (1964, p. 547). EUXENITE (Y,Ca,Ce,U,Th)(
Nb,Ti,Ta)20, Orthorhombic, nat- urally metamict. Part of euxenite-polycrase series
; ratios, Ti:(Nb+Ta) lie between 2:3 and 1:1 Nb,05 = about 21-34 percent; Taj05=
...
Geological Survey (U.S.), 1969
5
Geological Survey Professional Paper
A niobium-bearing opaque radioactive mineral found in the Wyoming deposits
and tentatively identified as euxenite could be a co- product of these placers if
they were exploited (Houston and Murphy, 1962). The most important placer
deposit ...
6
Contributions to the Geology of Uranium and Thorium: By the ...
Euxenite occures in trace amounts in several localities widely scattered over the
batholith. The only commercial placers now known in Bear Valley are supplied
from a 6-square-mile (15 km) area of quartz diorite. The euxenite occurs as an ...
Lincoln Ridler Page, Harriet B. Smith, 1956
7
Tantalum and Columbium Supply and Demand Outlook: Report of ...
Euxenite and pyrochlore granites contain columbium with minor amounts of
tantalum and, in the case of euxenite, rare earths. In place, these rocks are not
economic sources of columbium because of the dissemination of that element in
the ...
National Materials Advisory Board (U.S.). Committee on the Technical Aspects of Critical and Strategic Materials, 1983
8
Pegmatite investigations in Colorado, Wyoming and Utah 1942-1944
The main minerals are quartz, pink microcline, and highly sericitized plagioclase,
with accessory biotite, muscovite, monazite, and euxenite. The average grain
size of the main constituents is about 6 feet. One of the rare earth minerals in the
...
John Bernard Hanley, 1950
9
Oxide Mineral Introduction: Columbite, Baddeleyite, ...
Source: Wikipedia. Pages: 184. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge.
10
Uranium Minerals: Uraninite,
Euxenite, Thorianite, ...
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10 NOTÍCIAS NAS QUAIS SE INCLUI O TERMO «EUXENITE»
Conheça de que se fala nos meios de comunicação nacionais e internacionais e como se utiliza o termo
euxenite no contexto das seguintes notícias.
Scandium: The Element That Was Foretold
While sorting through the two familiar substances gadolinite and euxenite, he found an element no one had ever knowingly encountered. «io9, jun 15»
Hitting the scandium motherlode.
Rare minerals from Scandinavia and Madagascar such as thortveitite, euxenite, and gadolinite are the only known concentrated sources of this ... «InvestorIntel, abr 15»
Rare Earth Metals in Ireland's Mourne Mountain a Geologic Puzzle
Euxenite crystals containing ytterbium (Yb). Ytterbium is used in lasers, stainless steel and for nuclear medicine. Image Credit: Wikipedia ... «Geology for Investors, jan 15»
Scandium – the Outlier Rare Earth
It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia, hence its name. In terms of earth's ... «InvestorIntel, jun 14»
Tantalum (Ta) - Properties, Applications
... ductility, strength and melting point of steel. Although quite rare, tantalum is obtained from minerals such as tantalite, columbite, and euxenite. «Azom.com, ago 13»
Facts About Dysprosium
Like other rare-earth or lanthanide elements, dysprosium occurs in a variety of minerals, including gadolinite, euxenite, xenotime, fergusonite, ... «LiveScience.com, jul 13»
Facts About Terbium
The element can be extracted from monazite, in which it is present to the extent of 0.03 percent; from euxenite, a complex oxide containing 1 ... «LiveScience.com, jul 13»
Facts About Niobium
Niobium is found in niobite (or columbite), parochlore, niobite-tantalite and euxenite. As a constituent of parochlore, large amounts of niobium ... «LiveScience.com, mai 13»
Facts About Scandium
Discovery: Scandium was discovered by Lars Fredrik Nilson in 1878. He found it in the minerals euxenite and gadolinite, which at the time had ... «LiveScience.com, abr 13»
Dysprosium Nanoparticles - Properties, Applications
... monazite, euxenite, fergusonite, polycrase and xenotime. The morphology of dysprosium nanoparticles is spherical, and their appearance is ... «AZoNano.com, abr 13»
