zirkelite


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zirkelite

[′zər·kə‚līt]
(mineralogy)
A black mineral consisting of an oxide of zirconium, titanium, calcium, ferrous iron, thorium, uranium, and rare earths.
References in periodicals archive ?
Zirkelite (Ca,Th,Ce)Zr(Ti,Nb)[.sub.2][O.sub.7] (RA)
Birmingham (1987) reported sparse, microscopic crystals of zirkelite in phonotephrite and tephriphonolite on the surface at the Vindicator mine.