September’s Birthstone is the Sapphire
Posted by EarthSky in HUMAN WORLD | September 1, 2019 Sapphires are typically blue stones, with the color caused by small amounts of titanium and iron in the crystal structure. But if the crystal contains different impurities, you might also see sapphires in gray, yellow, pale pink, orange, green, violet or brown. The sapphire, birthstone for September, is a relative […]
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