Now, sapphires are predominantly made up of aluminum oxide in the form of corundum, but other elements can become mixed in. The deep blue hue that sapphires are known for comes from titanium and ...

Rubies and emeralds have the colors they do because, like many substances, they absorb some colors of light. Most visible light, like sunlight, is composed of all the colors of the rainbow: red, ...

Dublin, Feb. 13, 2025 (GLOBE NEWSWIRE) -- The "Corundum (CAS 1302-74-5) Industry Research 2025: Global and Regional Market Trends 2019-2024 and Forecast to 2029" report has been added to ...