KSIĄŻKI POWIĄZANE ZE SŁOWEM «POWELLITE»
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1
Gems: Their Sources, Descriptions and Identification
Powellite is CaMoO4 and is isostructural with scheelite with which it forms a
series. Powellite occurs as transparent to translucent straw yellow, greenish
yellow, greenish blue or blue dipyramidal crystals of the tetragonal system; the
lustre is ...
2
Tungsten Mineralization in the United States
Scheelite which contains molybdenum and powellite which contains tungsten are
fairly common. The original powellite described by Melville (1891) from the
Seven Devils district in Idaho yielded 10 per cent tungsten trioxide on analysis.
3
The Enrichment of Ore Deposits
Powellite, CaMo04, is formed by the oxidation of deposits containing molybdenite
. At the O K mine, in the San Francisco region, Utah,8 it appears as yellow
incrustations on quartz and some of it is pseudomorphic after molybdenite.
Powellite is ...
William Harvey Emmons, 1917
4
Transition Elements—Advances in Research and Application: ...
Batch and column experiments lasting from 46-110 days predict that molybdate (
MoO42-) mobility is limited by powellite (CaMoO4) and wulfenite (PbMoO4)
precipitation under neutral pH conditions with aqueous Ca and Pb present,” ...
5
OF1984-02: A mineral inventory of the Nevada Test Site, and ...
NEVADA-MASSACHUSETTS ADIT-TRENCH CRYSTAL PROSPECT Oak Spring
District Nye County, Nevada Sample #1835y-v Open Stope S\s^ I 3' zone
scheelite and powellite' Powellite and minor scheelite in roof on hanging wall of
fault ...
Jack Quade, J.V. Tingley, Jo L. Bentz, and Peggy L. Smith
6
Gemstones: Properties, Identification and Use
Molybdenum can readily substitute for tungsten, and scheelite forms a
replacement series with the molybdenate mineral powellite. Relatively pure
scheelite will fluoresce bright blue under short-wave ultraviolet light, while
powellite exhibits a ...
7
Tungsten: Properties, Chemistry, Technology of the Elements, ...
It is isomorphous to powellite (CaMoO4) with which it forms an incomplete series
of mixed crystals. Scheelite contains mostly only minor concentrations of
powellite. Its chemical composition as well as physical and mineralogical
properties are ...
Erik Lassner, Wolf-Dieter Schubert, 1999
8
OF1979-03: Molybdenum resources of Nevada
Powellite is considered to be rare in other types of deposits, probably at lfcast in
nv, part because of its inconspicuous appearance which leads it to be easily
overlooked. Powellite fluoresces golden yellow; this is the most widely used
method ...
John Harold Schilling, 1979
9
Second Report on a Cooperative Investigation of the ...
Black Hawk district. Scheelite and powellite occur in a layered garnet-epidote
rock in schist 2 miles southeast of Black Hawk. One small shipment of tungsten
ore is reported. (G. O. Argall, Jr., 1943.) Gunnison County. — Gold Hill(?) district.
10
Tungsten Minerals and Deposits
A possible exception is powellite (calcium molybdate,CaMoO4) , in which
Melville 1 determined a small percentage of tungsten. Examinations of powellite
obtained from several other sources indicate that the tungsten may have been
present ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «POWELLITE»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
powellite w wiadomościach.
It's round two of Britain versus Europe – but what has changed since …
... just as Farage now leads a more formal grouping of predominantly disenchanted ex-Conservatives of a Thatcherite, indeed Powellite, hue. «The Independent, Maj 15»
Sensible Tories still believe in One Nation Conservatism
... white and Powellite, to work for a better tomorrow. Many years ago, Disraeli pronounced the great principle for which this party, in peace and ... «Spectator.co.uk, Maj 15»
A general election campaign that is turning into a vile witchhunt
Allan Massie's Powellite diatribe is the extreme form of an attitude that has been widespread in the UK tabloid newspapers recently, though ... «Herald Scotland, Mar 15»
British politics has laid the ground for Pegida
Ukip's quasi-Powellite narrative fits very snugly into the general campaign of hysteria whipped up by the rightwing press on asylum and ... «The Guardian, Lut 15»
Richard Ritchie's commentary on Enoch Powell
Despite having voted to remain in the E.E.C. in the 1975 Referendum, Farage as a Conservative belonged to the Powellite wing of the ... «Telegraph.co.uk, Gru 14»
2014: the year racism went mainstream
“That is not your finest column Dan“, Tim Montgomerie tweeted, “a moderate reaction to a big public concern is hardly Powellite in any way”. «Telegraph.co.uk, Gru 14»
A Portrait of the Artist as a Droll Slacker
Now I am a devout Powellite, one of those possibly slightly annoying people who insist on pronouncing his surname as “Pole.” (Still, as Powell ... «The New Yorker, Paz 14»
Mine Tales: Tungsten, once mined here, now an import
Tungsten minerals include wolframite, scheelite, powellite, cuprotungstite and tungstite. Wolframite and scheelite — the two main commercial ... «Arizona Daily Star, Sie 14»
Standing up for a multi-ethnic Britain
The working-class Tory, the Powellite and the Thatcherite blue-collar voter has shifted to Ukip. The insecurity and fear of austerity Britain should make them and ... «Morning Star Online, Cze 14»
From the archive, 5 June 1970: 'Meet the people' turns sour for …
And it was not the fault of Tory hecklers or Powellite demonstrators - it was the fault of the police. It happened, appropriately enough, ... «The Guardian, Cze 14»
