Thread: The Ultimate Trivia Thread
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Old 01-13-2015, 01:19 PM   #320
Luffy
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The commonest material in the world is Perovskite, named after the mineralogist Count Lev Perovski. It's a mineral compound of magnesium, silicon and oxygen. It accounts for half of the world's mass and is what most of the Earth's mantle is made of.
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