Other than being used to line furnaces, a quality of ionic crystal structures is that they are

Other than being used to line furnaces, a quality of ionic crystal str

1.	Other than being used to line furnaces, a quality of ionic crystal structures is that they are
A.	conductors of heat
B.	conductors of electricity
C.	non-conductors of electricity
D.	non-conductors of heat
Answer» D. non-conductors of heat