• wonderingwanderer@sopuli.xyz
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    3 days ago

    No, sapphires are any color corundum besides red. Red corundum is called ruby. The molecular formula of corundum is Al2O3

    If it’s not corundum, it’s not a sapphire. Topaz isn’t a sapphire. Emerald isn’t a sapphire. There are yellow sapphires and green sapphires, but not every yellow or green gemstone is a sapphire.