Question

What are the 4 most abundant minerals in the continental crust? What percentage do these 4 makeup of the total?

Answer 1

Answer:

$SiO_2$, $Al_2O_3$, $CaO$, $MgO$

Explanation:

The four most abundant minerals in the continental crust are, $SiO_2$, $Al_2O_3$, $CaO$, $MgO$.

The percentages are

$SiO_2=60.6\%$

$Al_2O_3=15.9\%$

$CaO=6.4\%$

$MgO=4.7\%$

$SiO_2$ is called quartz

$Al_2O_3$ is called corundum

$CaO$ is called calcium oxide or quick lime

$MgO$ is called magnesium oxide or magnesia