Orthite
Al 1%, Ce 1%, La 1%, Th 1%, Y 1%,

estimated elemental composition and molecular weight 
Minerals with the same name may vary widely in appearance and composition, and very few are >99% (reagent grade) pure.

Gram formula weight (molecular mass) = 626.94


Minerals may vary in elemental composition and impurity levels. The formula given is an approximation.
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Orthite
is defined with respect to the entities below:
The entities below are defined with respect to:
Orthite
Mineral (generic)


Radioactive material (generic)


chemical compound molecule metal molecular science reaction mechanism ionic material acid base geometry reactivity synthesis science knowledge chemistry Lewis