Euxenite sentence example

euxenite
  • The element is of extremely rare occurrence, being met with only in argyrodite and, to a very small extent, in euxenite.
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  • The rare earth metals are found in the minerals gadolinite, samarskite, fergusonite, euxenite and cerite.
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  • It is usually found associated with tantalum, the chief minerals containing these two elements being tantalite, columbite, fergusonite and yttrotantalite; it is also a constituent of pyrochlor, euxenite and samarskite.
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  • Ilmenite is isomorphous with geikielite, MgTiO 3, and pyrophanite, MnTiO 3; many of the "rare minerals" - aeschynite, euxenite, polycrase, &c. - contain titanates (and also niobates).
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