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pyrochlore
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Pyrochlore - Wikipedia
Pyrochlore crystals are usually well-formed (euhedral), occurring usually as octahedra of a yellowish or brownish color and resinous luster . It is commonly metamict due to radiation damage from included radioactive elements. Pyrochlore occurs in pegmatites associated with nepheline syenites and other alkalic rocks.
en.wikipedia.org
en.wikipedia.org
Pyrochlore - an overview | ScienceDirect Topics
Pyrochlore refers to a class of complex oxides characterized by their unusual physical properties and intricate crystal structures, which require thorough ...
www.sciencedirect.com
www.sciencedirect.com
Pyrochlore Group: Mineral information, data and localities.
The pyrochlore group gets its name from the generic name pyrochlore which was first introduced by JJ Berzelius for a cubic mineral found by NO Tank in the 1820 ...
www.mindat.org
www.mindat.org
Pyrochlore Mineral Data - Mineralogy Database
Pyrochlore's chemical formula is (Na,Ca)2Nb2O6(OH,F), with a molecular weight of 353.84 gm. It is typically brown, yellowish brown, yellow, greenish brown, or ...
webmineral.com
webmineral.com
Pyrochlore | Structure, Properties, Uses - Britannica
Pyrochlore, a complex oxide mineral [(Na, Ca) 2 Nb 2 O 6 (OH,F)] composed of niobium, sodium, and calcium that forms brown to black, glassy octahedral crystals.
www.britannica.com
www.britannica.com
Pyrochlore - Cava Lab - Princeton University
The general formula for Pyrochlore is A 2 B 2 O 7 , or more accurately: A 2 B 2 O 6 O'. In the case of nominal pyrochlore, F occupies the F' site.
www.princeton.edu
www.princeton.edu
Pyrochlore Group - WGNHS
Pyrochlore is a group of rare minerals found in pegmatitic granites, syenites, and carbonatites. MARATHON COUNTY: Pyrochlore group mineral can be found as tiny ...
home.wgnhs.wisc.edu
home.wgnhs.wisc.edu
Pyrochlore-Supergroup Minerals Nomenclature: An Update - Frontiers
The general formula of the pyrochlore-supergroup minerals is A 2 B 2 X 6 Y. The mineral names are composed of two prefixes and one root name (identical to the ...
www.frontiersin.org
www.frontiersin.org
PYROCHLORE Definition & Meaning - Dictionary.com
Pyrochlore definition: a mineral, chiefly composed of niobates of the cerium metals, occurring in syenites in the form of brown crystals.
www.dictionary.com
www.dictionary.com
Pyrochlore – Knowledge and References - Taylor & Francis
Pyrochlore is a complex niobate of calcium and sodium containing variable amounts of iron, titanium, rare earths, fluorine, and sometimes thorium or uranium.
taylorandfrancis.com
taylorandfrancis.com
bariopyrochlore
bariopyrochlore, n. Min. Brit. /ˌbɛːrɪəʊˈpʌɪrə(ʊ)klɔː/, /ˌbarɪəʊˈpʌɪrə(ʊ)klɔː/, U.S. /ˌbɛrioʊˈpaɪroʊˌklɔ(ə)r/ [‹ barium n. + -o- connective + pyrochlore n.] A mineral of the pyrochlore group consisting of a basic niobate of barium (usually containing some strontium and tantalum) which belongs to the...
Oxford English Dictionary
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Oxyyttropyrochlore-(Y)
Oxyyttropyrochlore-(Y), also referred to as "obruchevite" or "yttropyrochlore-(Y)", is a potential (not yet accepted) zero-valent-dominant mineral of the pyrochlore
wikipedia.org
en.wikipedia.org
obruchevite
obruchevite Min. (ɒˈbruːtʃəvaɪt) [ad. Russ. obruchevit, f. the name of V. A. Obruchev (1863–1956), Russian geologist: see -ite1.] A mineral containing appreciable proportions of yttrium and uranium that was orig. regarded as a member of the pyrochlore group (see quot. 1977).1955 Internat. Conf. Peac...
Oxford English Dictionary
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