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  • Baozai Wang
    bir ses eklendi Other
    2022-09-03 02:17:30 - Translate -
    "Growing" diamonds in the lab
    How is rough uncut diamond "refined"? According to Shan Chongxin, a professor at Zhengda University, diamond is made of carbon element under the special conditions of high temperature and high pressure deep in the earth, plus a certain content and ratio of iron group metals as catalysts, after hundreds of millions of years of "cultivation". And artificially cultivated diamonds can shorten this...
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