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How and where are diamonds formed?; 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 2.5 billion years ago and the most recent was 45 million years ago.
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www.gemsutra.com/diamonds.html
www.gemsutra.com/diamonds.html
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To know more about how diamonds are formed, read on... Diamonds are made purely of carbon atoms arranged in an isometric-hexoctahedral crystal lattice. Being the most precious stone, diamonds are 1000 times stronger than rubies ... Diamon...
http://www.buzzle.com/articles/how-are-diamonds-formed....
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Diamond - Wikipedia, the free encyclopedia
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In mineralogy, diamond (from the ancient Greek adámas, meaning "proper" or "unalterable") is an allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic cry...
en.wikipedia.org/wiki/Diamond
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Diamonds are formed when materials containing carbon are exposed to high pressures and temperatures near 2000 degrees Farenheit. On Earth, these conditions occur in the lithospheric mantle and at the sites of meteorite strikes. Some diamond...
http://answers.ask.com/Science/Chemistry/how_are_diamon...
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Diamond is exotic, formed in Earth's interior and shot to the surface by extraordinary volcanoes. A diamond is likely the oldest thing you will ... Diamond is a strategic and high-tech supermaterial for our technological society. Diamond is a shape. This exhibition presents the fascinating story of the nature of diamonds...
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www.amnh.org/exhibitions/diamonds/
www.amnh.org/exhibitions/diamonds/
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Extreme heat and pressure caused the carbon atoms to crystallize forming diamonds. Pressure built up causing volcanic eruptions that brought the diamonds up to the surface. ... Back to All About Diamonds...
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library.thinkquest.org/5008/Formed.htm
library.thinkquest.org/5008/Formed.htm
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How are diamonds formed in nature? Diamonds form as crystals and are composed of pure carbon (C). Diamonds are one of the few stones that are made up of a single element,... ... Diamonds are formed when carbon atoms deep in the earth are exposed to enormous heat and pressure over millions of years.
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www.answerbag.com/q_view/2829
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Just how are diamonds formed? You probably remember from grade school something to the effect that diamonds are formed primarily by intense pressure over long periods of time. That's basically it, but there are a lot more interesting tidbits... ... Diamonds are formed deep within the earth and eventually,
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searchwarp.com/swa122931.htm
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At depths of 93 miles (150 km) or more, pressure builds to about 725,189 psi (50 kilobars) and heat can exceed 2,192 F (1,200 C). Most diamonds that we see today were formed millions (if not billions) of years ago.
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www.howstuffworks.com/diamond1.htm
www.howstuffworks.com/diamond1.htm
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