The Mineral Quartz Is Distinctive Because It Consists Of

The mineral quartz is distinctive because it consists of:

A) a three- dimensional framework in which the silicon atoms are often replaced with atoms of aluminum, potassium, sodium, or calcium.
B) a three- dimensional framework composed entirely of silicon and oxygen.
C) independent tetrahedra composed entirely of silicon and oxygen.
D) independent tetrahedra in which the silicon atoms are often replaced with atoms of aluminum, potassium, sodium, or calcium.