Sapphire is a variety of corundum.
Sapphire is gem quality corundum, which is a mineral.
The mineral corundum.
Sapphire is a form of the mineral corundum.
Sapphire is a gemstone version of the mineral corundum.
A sapphire gem is mainly composed of the mineral corundum and other trace mineral impurities that give it its color.
Sapphire is a variety of the mineral corundum and is not classified as rocks are.
Corundum.
The mineral sapphire value is 12 dollars per pizza
a Sapphire is a mineral
raw sapphire....
no it is not because it is a crystal. It is a mineral.
Sapphire is a gem-quality variant of the mineral corundum.