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How Are Diamonds Made
By David Cowley
Millions of years ago the ancient oceans had microorganisms that lived and died in the oceans. When the microorganisms died there bodies fell to the ocean floor. After the bodies decomposed, what was left was almost pure carbon. The crust of the earth surface is in constant motion. Movement is due to tectonic plates and the continental drift.
When one of the tectonic plates was pushed under another the bodies of the microorganism, now carbon, is also buried under tons of rock. The carbon is subject to extreme pressures by the rock pressing down upon it and by extreme heat, which is usually between 1100, and 1400 degrees Celsius. If the carbon being acted upon is pure then the diamond will be colorless which is normal for diamonds. If nitrogen or sulphur is also included in the carbon then some color may be added to the diamond.
This process preserves the unique crystal structure that makes diamonds the hardest natural material known. The arrangement of the atoms causes the diamonds to have tighter atoms than any other substance in the world. When volcanoes erupted, every once in a while, the microorganisms, which are now diamonds, are forced to the service. Conventional diamonds are mined from explosive volcanic rocks (kimberlites) that transport them from depths in excess of 100 kilometers by volcanic action.
Man Made.
In the year 2004, scientists from Carnegie Institution's Geophysical Laboratory managed to produce gems that are harder than any other crystals. These man made diamonds were produced using a gas mixture. The crystals that were produced were so hard that the instruments and paraphernalia used to make them broke. The great part about these man made diamonds is they were created in less than a day.
Put pure carbon under enough heat and pressure, about 2,200 degrees Fahrenheit and 50,000 atmospheres and
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Diamond Jewelry Appraisals - Are They Worth It?
By Chris Robertson
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Diamond Simulant Jewelry: A Comparison Of Company Guarantees
By Elizabeth Cradwell
In the last several years, consumers have been turning away from natural diamonds and buying man-made diamond jewelry. There are several companies leading the diamond simulant industry: ASHA, CARAT, Read more...
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What Do You Know About Diamonds?
By jean-paul marchent
Diamonds have a wide variety of uses since they are the toughest substance to date on Earth. However, under normal circumstances they are not any good for conducting electricity unless they are of Read more...
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Diamond Engagement Ring.
By Akhil
The concept of Engagement has evolved way back many centuries ago which indicates the longer period between a mutual promise of marriage till the actual marriage, where the partners exchange a Read more...
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