(D) The chemical formulas for the given minerals are:$1$. Corundum: $Al_2O_3$$2$. Diaspore: $AlO(OH)$ or $Al_2O_3 \cdot H_2O$$3$. Bauxite: $Al_2O_3 \c

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(D) The chemical formulas for the given minerals are:$1$. Corundum: $Al_2O_3$$2$. Diaspore: $AlO(OH)$ or $Al_2O_3 \cdot H_2O$$3$. Bauxite: $Al_2O_3 \cdot 2H_2O$$4$. Cryolite: $Na_3AlF_6$Among these,Cryolite $(Na_3AlF_6)$ is a fluoroaluminate mineral and does not contain oxygen atoms.