Question

What are Rubies and Sapphires chemically known as? (a) Silicon dioxide (b) Aluminium oxide

Answer 1

Ruby's chemical composition is aluminium oxide which is also called corundum (this is the same as sapphires) but it is the presence of impurities such as chromium oxide and iron oxide which gives rubies their colour.

Answer 2

Answer:

Rubies and Sapphires chemically are aluminium oxide.

Explanation:

hope it helps you.