Question

Which mineral has been named incorrectly?

• A. $\begin{array}{ccc}Bauxite& :& A{l}_2{O}_3\cdot 2H_{2}O\end{array}$
• B. $\begin{array}{ccc}Corundum& :& A{l}_2{O}_3\end{array}$
• C. $\begin{array}{ccc}Cryolite& :& 3NaF\cdot AI{F}_3\end{array}$
• D. $\begin{array}{ccc}Felspar& :& B{e}_{3}A{l}_{2}S{i}_6{O}_{18}\end{array}$

Answer 1

The correct option is D $\begin{array}{ccc}Felspar& :& B{e}_{3}A{l}_{2}S{i}_6{O}_{18}\end{array}$

Felspar is $KAlS{i}_3{O}_8$