💙 Sapphire blue comes from iron + titanium magic. #BlueSapphire #Gemstones

追加: 2026-05-18

[00:00:00]Now, what makes it blue is that there are traces of impurities which consist of iron and titanium. Now, because of this, these elements cause transfer between ions absorbing red and yellow light while reflecting blue wavelengths.

[00:00:16]Isn't that kind of cool? So, basically all corundum is is a specific type of mineral. In order to make it yellow or pink or purple or green, there's just different types of elements stuck inside of the corundum that gives it this color. But, in terms of blues, the reason why it gives this color is because of the iron and titanium and it reflects the blue wavelengths.