Al 2%, | B 1%, | Ca 2%, | Fe 1%, | Mn 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) = 255.71
Minerals may vary in elemental composition and impurity levels. The formula given is an approximation.
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