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Politics : Evolution
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To: Blasher who wrote (36709)5/28/2013 3:10:48 PM
From: average joe  Read Replies (1) of 69300
 
Micro-diamonds were seeded on earth several billions of years ago by meteorites when planet earth was in a more molten state. They embedded themselves in what we now call the upper mantle where under the right pressure and temperature regime they can grow to macro size. Sometimes during their 100+ mile ascent to surface they are reduced back to carbon if over heated. It all depends on the Isotherms.
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