Precious stones like ruby, emerald and diamond are found in which rocks??
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Most gemstones form in the Earth's crust, approximately 3 to 25 miles beneath the Earth's surface. Two gemstones, diamonds and peridot, are found much deeper in the Earth. Diamond forms in “kimberlite pipes” that originate in the Earth's mantle (>125 miles) and end at the surface.
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most gemstones form in the earth's crust, approximately 3 to 25 miles beneath the earth's surface. two gemstones, diamonds and peridot, are found much deeper in the earth. diamond forms in “kimberlite pipes” that originate in the earth's mantle (>125 miles) and end at the surface.
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