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pyrochlore

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pyrochlore [′pī·rə‚klȯr]
(mineralogy)
(Na,Ca)2(Nb,Ta)2O6(OH,F) Pale-yellow, reddish, brown, or black mineral, crystallizing in the isometric system, and occurring in pegmatites derived from alkalic igneous rocks. Also known as pyrrhite.


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These properties are generally valid for materials with the same topology, that is for magnetic moments on the pyrochlore lattice.
The mines of the Congo have poured forth diamonds as well as metals and minerals--niobium, tungsten, pyrochlore, coltan, and germanium.
A Quebec mining company intends to extract industrial minerals from its recently-acquired pyrochlore property on the James Bay lowlands.
 
 
 
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