In which of the following minerals, Al is not present
A. Cryolite
B. Mica
C. Feldspar
D. Fluorspar
A. Cryolite
B. Mica
C. Feldspar
D. Fluorspar
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Correct Answer – D
Fluorspar `(CaF_(2))` does not contain aluminium. Feldspar `(K_(2)O.Al_(2)O_(3).6H_(2)O)`, mica `(KAl_(3)Si_(3)O_(10)(OH)_(2))` and cryolite `(Na_(3)AlF_(6))` contain aluminium.