How do gemstones get their color?
Chemistry For Your Life
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The Importance of Light
In the standard visual region of light and infrared, it's all the same material. And no difference for infrared like waves that are hitting it or whatever. It doesn't make any difference. So suddenly you realize like, oh, lights just the way we see it in the region we seeing it in. Light gives things color. Without light, there's not color. Right. If some sort of creature could see, which I think there are, which is it, they don't think everything would look totally different to them. Who's more right?
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