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

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Main Question or Discussion Point

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:
 
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Answers and Replies

  • #2
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Leave it, a reasonable C phase diagram is handy to have on the forum.
 

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