ETIMOLOGIA CUVÂNTULUI SCHEELITE
From German Scheelit, named after Karl Wilhelm Scheele (1742–86), Swedish chemist.
CE ÎNSEAMNĂ SCHEELITE ÎN ENGLEZĂ?
Scheelite
Scheelitul este un mineral tungstate de calciu cu formula chimică CaWO4. Este un minereu important de tungsten. Cristalele bine formate sunt căutate de colecționari și sunt ocazional modelate în pietre prețioase, atunci când sunt adecvat lipsite de defecte. Scheelitul a fost sintetizat prin intermediul procesului Czochralski; materialul produs poate fi utilizat pentru a imita diamantul, ca scintilator, sau ca mediu de lasere de stare solida.
Definiția scheelite în dicționarul Engleză
Definiția scheelitei în dicționar este un mineral alb, maroniu sau verzuie, de obicei fluorescent, constând din tungstate de calciu în formă cristalină tetragonală, cu unele tungsten adesea înlocuite cu molibden: apare în principal în roci metamorfice de contact și vene de cuart și este important sursă de tungsten și tungsten de calciu purificat. Formula: CaWO4.
CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «SCHEELITE»
Descoperă întrebuințarea
scheelite în următoarea selecție bibliografică. Cărți în legătură cu
scheelite și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Mineral Deposits at the Beginning of the 21st Century
Genetic types of scheelite mineralisation and maximum gold concentrations in
scheelite-bearing rocks or/and quartz veins (after Mikulski 2000) against
geological background of Hercynian veins cuts the Klodzko-Ztoty Stok massif and
its ...
2
Modern Luminescence Spectroscopy of Minerals and Materials
Reabsorption lines of molecular oxygen and water in laser-induced time-
resolved luminescence spectra of sedimentary apatite (francolite) 8.0x10 7 6.0
x10' I 4,0x10 2,0x10 4.1.2 Scheelite CaW04 Scheelite is a calcium tungstate,
CaWO4, with ...
Michael Gaft, Renata Reisfeld, Gerard Panczer,
2005
3
Tables of Gemstone Identification
Scheelite synthetic Baddeleyite Crocoite Cuprite Simpsonite Scheelite Scheelite
synthetic Crocoite Cuprite Simpsonite Scheelite Scheelite synthetic Crocoite
Cuprite Simpsonite Scheelite Scheelite synthetic Crocoite Cuprite Simpsonite ...
Roger Dedeyne, Ivo Quintens,
2007
4
The Timing and Location of Major Ore Deposits in an Evolving ...
centimetre-thick quartz veinlets with scheelite, arsenopyrite, cassiterite, pyrite and
chalcopyrite. 1n granite, cassiterite predominates over scheelite in unzoned
veinlets, whereas in amphibolite, scheelite strongly predominates in zoned
veinlets.
Derek John Blundell, Franz Neubauer, Albrecht Quadt,
2002
5
Proceedings of the 29th International Geological Congress: ...
Moreover, solubility of scheelite decreases with an increasing N2 component in
complex C-H-O-N fluids. For scheelite deposited in calc-silicate gneisses of
Montagne Noire, France Gilbert et al. [30] rejected a possibility that scheelite ...
Tadao Nishiyama, Fujio Kumon, Y. Watanabe,
1994
A specimen sent by Mr. Temney to the United States Geological Survey shows
beautifully white pieces of scheelite, an inch in diameter, buried in quartz. On the
west side of the Nightingale Range, opposite the north end of the claims on the ...
7
Tungsten Minerals and Deposits
Continuing this computation, it was determined that ore that looked to be three-
fourths (by volume) of "apparent" scheelite, as judged by the man sorting it,
contains 58 per cent of WOa ; that one-half " apparent " scheelite contains 46 per
cent of ...
8
U.S. Geological Survey Professional Paper
Scheelite (CaWO4) was discovered in Cattle Canyon, in the Sheep Mountain
Wilderness Study Area, in the 1950's and has been worked intermittently since
then, mostly by handpicking the high-grade pieces of rock from talus and
alluvium.
9
Geological Survey Professional Paper
White to very pale yellowish green scheelite occurs as irregular patches and
blebs on the margins of and within huebnerite crystals, and as small veinlets or
fracture fillings a fraction of a millimeter wide in huebnerite (figs. 17, 18). Locally ...
Geological Survey (U.S.),
1984
10
Quartz: Deposits, Mineralogy and Analytics: Deposits, ...
15.6 Scanning electron microscope CL images of pseudomorphs of scheelite
after wolframite and of late scheelite overgrowth enclosed in quartz, images were
taken using a Jeol JSM 6400 with a Mini CL detector operated at 20 kV and 600 ...
Jens Götze, Robert Möckel,
2012
ȘTIRI NOI CARE INCLUD TERMENUL «SCHEELITE»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
scheelite în contextul următoarelor știri.
State Route 839 reopened after flash flooding
The road, also known as Scheelite Mine Road, runs south of U.S. 50 between the Sand Mound Recreation Area and the Rawhide Mine. State officials closed the ... «Reno Gazette Journal, Iul 15»
Vital Metals slashes capital costs at Watershed Tungsten Project
Vital continues to review the DFS for further opportunities to enhance the Project and believes that with scheelite mineralisation open at depth and along strike ... «Proactive Investors USA & Canada, Iun 15»
Australia riding to the rescue of tungsten
King Island Scheelite (ASX:KIS) owns the Dolphin project located on King Island, part of the state of Tasmanian. This deposit was mined between 1917 and ... «InvestorIntel, Iun 15»
100 year old tungsten mine on King Island may reopen after two …
In its golden era of the 1940s and 1970s the scheelite mine in King Island's south-east employed over 500 people and was a major boon for the island's ... «ABC Online, Iun 15»
Glowing progress for scheelite project
King Island Scheelite chairman Johann Jacobs is looking forward to a very busy period as the company moves to re-open its high-grade tungsten mine on a ... «MiningNews.net, Mai 15»
JURUPA VALLEY: Man accused of theft from Pedley Elementary
On Monday, deputies arrested Gutierrez without incident at his home in the 6000 block of Scheelite Street -- about a block away from the school. Anyone with ... «Press-Enterprise, Apr 15»
Larry Wissbeck 1939-2014
Wissbeck was raised in central Nevada, in the now-abandoned mining camp of Nevada Scheelite and Fallon. He recalled watching a 1950s atomic test flash ... «Reno News & Review, Iul 14»
Man Accused of Stealing Copper from Murrieta Construction Site …
After identifying Frederick as the owner of the vehicle, a search warrant was served at his Scheelite Street residence, where investigators recovered the property ... «Patch.com, Iul 14»
King Island Scheelite to raise $2 million for tungsten project, Tasmania
King Island Scheelite (ASX:KIS) has initiated a 1 for 8 rights issue priced at ... KIS is focused on redeveloping the original scheelite mine on King Island, with the ... «Proactive Investors Australia, Iul 14»
Almonty Industries Inc. announces it has entered into a binding …
Upon completion of the transaction Almonty will be the only listed company on the TSX/TSX-V with two operating tungsten mines, producing both scheelite and ... «Canada NewsWire, Iun 14»