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Do natural diamonds form from carbon-vapour or liquid-carbon

  1. Dec 12, 2014 #1
    What is the state of carbon just prior to it forming a diamond, deep in the Earth's crust ?
    Carbon vapour , or liquid carbon ?.


    Update: I think I've managed to answer my own question ...

    http://www-als.lbl.gov/images/stories/Science_Highlights/Highlights/108carbon1.png [Broken]
    http://www-als.lbl.gov/index.php/holding/276-time-resolved-study-of-bonding-in-liquid-carbon.html [Broken]


    But cannot manage to delete this thread :blushing:
     
    Last edited by a moderator: May 7, 2017
  2. jcsd
  3. Dec 12, 2014 #2

    Bystander

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    Leave it, a reasonable C phase diagram is handy to have on the forum.
     
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