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pyrochlore
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Pyrochlore
Pyrochlore () is a mineral group of the niobium end member of the pyrochlore supergroup. Crystal structure
Pyrochlore is also a more generic term for the pyrochlore crystal structure (Fdm).
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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
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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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Ferroniobium
The niobium is mined from pyrochlore deposits and is subsequently transformed into the niobium pentoxide Nb2O5.
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pandaite
pandaite Min. (ˈpændəaɪt) Also pandaïte. [f. Panda, the name of the hill in Mbeya, Tanzania, where it was first found + -ite1.] A hydrated oxide of barium, strontium, niobium, and titanium, (Ba,Sr)(Nb,Ti)2(O,H2O)7, belonging to the pyrochlore group and found as yellow or white octahedral crystals.19...
Oxford English Dictionary
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Dysprosium titanate
Dysprosium titanate (Dy2Ti2O7) is an inorganic compound, a ceramic of the titanate family, with pyrochlore structure.
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Microlite
The microlite group belongs to a large pyrochlore supergroup that occurs in pegmatites and constitutes an ore of tantalum. The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48(3), 673–698.
Palache, C., H. Berman, and C.
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Hydrokenoelsmoreite
It has a structure based on a defect pyrochlore lattice (A2B2O6O’). The pyrochlore supergroup of minerals: nomenclature.
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烧绿石
烧绿石(英语:Pyrochlore)是一类含铌矿物,化学式可表示为Na,Ca)2Nb2O6(OH,F)。
烧绿石也是通式为A2B2O7(其中A和B均为金属)的晶体的结构。
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如何理解凝聚态物理中的平带(flat band)?
目前单晶材料中的拓扑平带主要来自于晶格的几何阻挫,如line-graph 格子(Kagome Pyrochlore 等), bipartite lattice ( Lieb lattice等具有近似sublattice/chiral symmetry 的体系).
zhihu
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Panda Hill Carbonatite
The Panda Hill Carbonatite is an apatite and pyrochlore bearing sovite carbonatite located in the Mbeya District of Tanzania. Niobium ore occurs largely in pyrochlore bearing sovite (carbonatite composed largely of calcite) and dolmite-rich carbonatite.
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Nickel niobate
Cubic pyrochlore, tetragonal pyrochlore, and other unknown phases were found.
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