单词 | pyrochlore |
释义 | pyrochlore [`pī·rǝ´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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