CHE SIGNIFICA FLUORITE IN INGLESE
Fluorite
Fluorite è la forma minerale del fluoruro di calcio, CaF2. Appartiene ai minerali di alogenuri. Si cristallizza in abitudine cubica isometrica, anche se forme isometriche ottaedriche e più complesse non sono rari. Il fluorite è un minerale colorato, sia in luce visibile che ultravioletta, e la pietra ha usi ornamentali e lapidari. Industrialmente, il fluorite è utilizzato come flusso per la fusione e nella produzione di alcuni vetri e smalti. I gradi più puri di fluorite sono una fonte di fluoruro per la produzione di acido fluoridrico, che è la fonte intermedia della maggior parte delle sostanze chimiche fine contenenti fluoro. Le lenti a fluorescenza trasparenti otticamente chiare hanno una bassa dispersione, per cui le lenti da esse prodotte presentano meno aberrazioni cromatiche, rendendole preziose nei microscopi e nei telescopi. Le ottiche di fluorite sono utilizzabili anche nella gamma estremamente ultravioletta in cui gli occhiali convenzionali sono troppo assorbenti per l'uso.
definizione di fluorite nel dizionario inglese
La definizione di fluorite nel dizionario è un minerale bianco o incolore a volte fluorescente e spesso tinto dalle impurità, che si trova nelle vene e come depositi di gas caldi. È utilizzato nella produzione di vetro, smalto e gioielli ed è il principale minerale del fluoro. Composizione: fluoruro di calcio. Formula: CaF2. Struttura cristallina: cubica Chiamata anche: fluorite, fluor.
PAROLE IN INGLESE ASSOCIATE CON «FLUORITE»
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10 LIBRI IN INGLESE ASSOCIATI CON «FLUORITE»
Scopri l'uso di
fluorite nella seguente selezione bibliografica. Libri associati con
fluorite e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
The Book of Stones: Who They Are and What They Teach
ROBERT SIMMONS Fluorite can act as a 'psychic vacuum cleaner,' clearing the
atmosphere of confusion, cluttered thoughts, negativity and any sort of astral '
hangers on' who are making mischief in one's environment. It is balancing to the
...
Robert Simmons, Naisha Ahsian,
2007
2
Optical
Fluorite in Southern Illinois
\I IN SOUTHERN ILLINOIS As to the quantity of optical fluorite that the United
States consumes each year, it is likewise difficult to state, as this depends upon
the quality of the crude material. But as prospective producers should have some
...
Joseph Ezekiel Pogue,
1918
3
Geochemistry, Groundwater and Pollution, Second Edition
If equilibrium with fluorite imposes a constraint on the groundwater composition
then water with a high natural Ca2+ concentration will generally contain a low F~
concentration, while groundwater with a low Ca2+ concentration will be rich in ...
C.A.J. Appelo, Dieke Postma,
2005
4
Changing Scopes in Mineral Processing: Proceedings of the ...
Mining Engineering Department, Middle East Technical University, Ankara,
Turkey ABSTRACT: In this research the effect of some inorganic agents on
flotation characteristics of fluorite and barite minerals were investigated.
Hallimond tube ...
M. Kemal, V. Arslan, M. Canbazoglu,
1996
5
From the Cincinnati Arch to the Illinois Basin: Geological ...
Idealized bedding replacement and vein type fluorite deposit within the Illinois-
Kentucky Fluorite District. A color version of this figure is available as item
2008108 in the GSA Data Repository at www.geosociety.org/pubs/ft2008.htm or
on ...
Anton H. Maria, Ronald C. Counts,
2008
6
Meddelelser om Gronland
Irregular, colourless, rounded grains of fluorite are present in this topaz. The
topaz-rich masses frequently show sediment-like and crust-like structures (Fig. 15
). In all cases consolidation of fluorite alternates with topaz precipitation.
Repeated ...
7
Field Guide to Rocks & Minerals of Southern Africa
violet and are associated with other interesting minerals, such as calcite, quartz,
galena, azu- rite, cerussite, chrysocolla and anglesite. Quartz veins containing
honey-coloured fluorite are found in granite, 25 km north-east of Uis. Similar
quartz ...
8
Evaporites:Sediments, Resources and Hydrocarbons: Sediments, ...
Florida fluorite was syndepositional with the precipitation of gypsum in the
capillary zone of an Eocene sabkha mudflat. If so, it was ultimately derived by the
evaporative concentration of normal seawater. Additional fluoride in the parent
pore ...
9
Geochemical Methods of Prospecting for Non-Metallic Minerals
The sulphide- fluorite (with quartz and calcite) and quartz-barite polymetallic
fluorite mineralizations generally represent the later-formed members of the
group of affiliated ore formations, which, according to the time of their origination,
directly ...
Igor' L. Komov, A. N. Lukashev, A. V. Koplus,
1994
10
Great Little Museums of the Midwest
dents made their livelihood — the state mineral, fluorite, or fluorspar. Located in
the former office building of the Rosiclare Lead and Fluorspar Mining Company,
off Highway 34, the town's main drag, the American Fluorite Museum contains, ...
Christine Des Garennes,
2002
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «FLUORITE»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
fluorite nel contesto delle seguenti notizie.
Can you dig it? Rock hounds dive into dirt for rare stones
Aaron and Jessica Barker of Abilene dig through the remains of an old mining operation in Mason, looking for fluorite and topaz. The two were ... «San Antonio Express-News, lug 15»
Commerce Resources starts summer drilling at Quebec's Ashram …
One especially wide high-grade interval hit 1.91% TREO, 6.3% middle and heavy rare earth oxides and 6.8% fluorite over 142 metres. «Resource Clips, lug 15»
Alianza Commences Nevada Projects Reconnaissance
Barite and fluorite are noted in the geological reports and a prior operator completed 4,200 meters of rotary drilling in 1984. Numerous shallow ... «Canadian Mining Journal, lug 15»
Global marcasite market - industry size, share, segments,trends …
It is commonly associated with dolomite, fluorite, pyrrhotite, pyrite, galena, sphalerite and calcite. - Advertisement -. Marcasite is inherently ... «WhaTech, lug 15»
What's on TV Tuesday: Reality stars have rocks in their hands
Amanda is thrilled when she finds a nugget of green topaz, but is it really topaz, or just fluorite? On such questions does the tension of ... «Sydney Morning Herald, lug 15»
Nikon Updates Its 500mm f/4 and 600mm f/4 Super-Telephotos with …
Magnesium alloy technology borrowed from Nikon's professional DSLR bodies work in tandem with Nikon's fluorite lens elements to reduce ... «Fstoppers, lug 15»
Neglect of Solid Minerals - Why Nigeria Remains Poor
fluorite only in Taraba State with gold in Niger, Kebbi, Kaduna, Kogi, Kwara and Zamfara and a little in Osun. Nasarawa State in the North has ... «AllAfrica.com, giu 15»
Research delivers insight into the Global fluorite market 2015-2020 …
The report provides a basic overview of the industry including definitions, classifications, applications and industry chain structure. The Fluorite ... «WhaTech, giu 15»
Using EDXRF for the Determination of Fluorite
Fluorite or fluorspar, a mineral composed of calcium and fluorine, is used in a number of industrial applications, namely in the production of ... «Azom.com, giu 15»
Sigma 24-35mm f/2 DG HSM Art
This optical glass has a performance equal to fluorite glass which has a low refractive index and low dispersion compared to current optical ... «PhotographyBLOG, giu 15»