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Diamond is a metastable allotrope of carbon, where the carbon atoms are arranged in a .... Diamonds can also form under other naturally occurring high- pressure conditions. Very small diamonds of micrometer and nanometer sizes, known as ...


Diamond formation: Diamonds found at or near Earth's surface have formed through four different processes. The plate tectonics cartoon above presents these ...


Diamonds are formed deep within the Earth about 100 miles or so below the surface in the upper mantle. Obviously in that part of the Earth it's very hot. There's a ...


Nov 13, 2012 ... Diamonds are made out of carbon — highly organized carbon, that is. Geologists are still guessing how diamonds formed in the Earth from 1 ...

Nov 27, 2009 ... Clip from National Geographic regarding the formation of diamonds.


Mar 23, 2017 ... Learn about how diamonds are made, from their beginnings are carbon-bearing ore to diamond mining to the polishing of rough diamonds.


Sep 15, 2016 ... How diamonds are formed depends on where they originate. Deep in ... the lab? The truth is, man made or naturally grown diamonds are similar.


Diamonds form between 120-200 kms or 75-120 miles below the earth's surface. According to geologists the first delivery of diamonds was somewhere around ...


Have you ever wondered where the sparkling jewels on your ring come from? Check out some fascinating facts about the formation process of diamonds here.