fersmanite

fersmanite

[′fərz·mə‚nīt]
(mineralogy)
(Na,Ca)2(Ti,Cb)Si(O,F)6 A brown mineral composed of a silicate fluoride of sodium, calcium, titanium, and columbium.
References in periodicals archive ?
058 Norbergite, Samuelsonite, Fersmanite, Fergusonite- beta-(Ce) 9.