Hematite
Fe
2
O
3
  
 
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) = 159.69


Minerals may vary in elemental composition and impurity levels.
Wikipedia Page:

Hematite
is defined with respect to the entities below:
The entities below are defined with respect to:
Hematite
Iron(III) oxide


Mineral (generic)


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