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Natural diamond is formed in the carbon layer more than 100 kilometers deep underground. In the environment of ultra-high temperature and high pressure, the carbon element in the form of graphite is squeezed into a diamond structure. The whole formation process only takes a few days. After millions of years of crustal movement, it follows the volcanic eruption to the surface of the earth and becomes a diamond that can be mined.
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SAF Coolest v1.3 设置面板 FZTSX-ZGYF-OVAFE-ZFF
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