During the Bronze Age, people have used Garnet - garnet as a gemstone capable as amulets. Garnets are a group of silicate minerals with many different colors: red, orange, yellow, green, blue, purple, brown, black, pink and colorless, of which blue is the best color and also the rarest. In the 1990s, blue Garnets are found in Madagascar, more recently, Russia, the US and Turkey. When placed backlit, by containing a large amount of vanadium - a rare metallic blue, silver, gray, blue garnets can change color from light blue continent into daytime, purple and purple if be viewed under incandescent light.
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