euxenite

Related to euxenite: Polycrase

euxenite

[′yük·sə‚nīt]

(mineralogy)

A brownish-black rare-earth mineral that crystallizes in the orthorhombic system, contains oxide of calcium, cerium, columbium, tantalum, titanium, and uranium, and has a metallic luster; hardness is 6.5 on Mohs scale, and specific gravity is 4.7-5.0.

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References in periodicals archive ?

Euxenite has been reported from six principal mines and mine groups (DSGM, 1974).

Uraninite, in association with ferrotantalite, fergusonite, euxenite, samarskite and monazite, is known from the cluster of pegmatite bodies that includes the Mugeba, Bere, Enluma, Maria, Muacotaia and Namagoa pegmatites (DSGM, 1974).

Minerals: Kaolin, beryl, ferrotantalite-ferrocolumbite, zenotime, samarskite, monazite, euxenite.

Minerals: Beryl, ferrotantalite-ferrocolumbite, thorianite, bismutite, monazite, microlite, zircon, samarskite, euxenite, beryl gems, black beryl, xenotime.

Minerals: Betafite, euxenite, allanite, monazite, bismuthinite.

THE ALTO LIGONHA PEGMATITES MOZAMBIQUE

During this period, excellent crystal specimens of euxenite, monazite and zircon were recovered through the efforts of mineral dealers operating out of Governador Vadadares.

Magnetite commonly exhibits an exsolution texture comprised of intergrown magnetite, hematite, rutile and (rarely) translucent brown euxenite with a yellowish alteration surface.

Cubic uraninite crystals to a millimeter or so in size occur scattered through feldspar, euxenite and magnetite.