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

What are Rubies and Sapphires chemically known as?

(a) Silicon dioxide (b) Aluminium oxide (c) Lead tetroxide (d) Boron nitride

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

(b) Rubies and Sapphires are scientifically the same stone, differing only in color. Corundum, the predominating mineral of both, is composed of nearly pure alumina (Al2O₃).The coloring substance which differentiates rubies and sapphires is believed to be chromium.

4 views Answered 2023-02-05 15:29

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