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polymignyte

noun
poly·​mig·​nyte
variants: or polymignite \ˌpälēˈmigˌnīt, -​lə̇m-​ \
plural -s

Definition of polymignyte 

: a mineral (Ca,Fe,Y,etc.,Zr,Th) (Cb,Ti,Ta)O4 consisting of a niobate and titanate of the metals of the cerium group with iron and calcium

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History and Etymology for polymignyte

Swedish polymignit, from poly- + mign- (from Greek mignynai to mix) + -it -ite

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