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yttrocrasite
noun
yt·tro·cra·site
Definition of yttrocrasite
-s
: a mineral approximately (Y,Th,U,Ca)2(Ti,Fe,W)4O11 or (Y,Th,U,Ca)(Ti,Fe,W)2O5(OH) consisting of an oxide or basic oxide of the yttrium metals, thorium, uranium, titanium, iron, and tungsten and occurring in pitchy-black orthorhombic crystals (hardness 5.5–6, specific gravity 4.8)
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Origin and Etymology of yttrocrasite
yttrium +-o- + cras- (from Greek krasis mixing, combination) + -ite
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