Rubies and sapphires are essentially

1.	Rubies and sapphires are essentially
Answer» `Al_(2)O_(3)+C` `Al_(2)O_(3)` `Al_(2)O_(3)+Ag_(2)O` `Al_(2)O_(3)+Au_(2)O_(2)` Solution :Rubies and sapphires ESSENTIALLY CONSIST of `Al_(2)O_(3)`.

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