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What makes gemstones so brilliantly colored — spoiler alert, it’s physics
Heat and irradiation treatments can also enhance or alter the colors of topaz, making it one of the most versatile and widely ...
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People Born in October Have a Birthstone That Sparks Creativity—Here's What It Is
Interestingly, depending on where the opals come from, they can have distinctly different colors. October's alternative birthstone is tourmaline. "It's fascinating that both gemstones for October ...