2006-11-21 00:19:07 · 23 answers · asked by frosty2u 1 in Science & Mathematics ➔ Earth Sciences & Geology
Carbon in its hardest form
2006-11-21 00:20:26 · answer #1 · answered by Santhosh S 5 · 1⤊ 1⤋
Diamonds are made of the same substance that the lead in your pencil and coal is made of. It's just that the atoms themselves are arranged in a way that make them tighter than any other substance. The bonds are formed when carbon exists at very high temperatures and under very high pressure. Natural diamonds are made very deep in the Earth about 180 km below the surface where high temperatures and pressure exist naturally.The temperature is very high at this depth - between 1100 degrees Celsius and 1400 degrees Celsius. The high pressures are produced by the weight of 180 km of rocks pressing down on it. This is how the diamond comes to be. Besides the carbon there are other substances like nitrogen and sulphur that can become trapped in the crystal. These substances can add color to the diamond, which under normal conditions is colorless. One of the rarest diamond colors is pink, which just happens to be the color of the diamond that Ben Afleck gave to Jennifer Lopez. It's worth is about $3 million!
2006-11-21 00:23:59 · answer #2 · answered by Albertan 6 · 2⤊ 0⤋
Diamond is the hardest known natural material and the most expensive one of the two best known forms (or allotropes) of carbon, whose hardness and high dispersion of light make it useful for industrial applications and jewelry.
About 100 tons of Diamonds are synthesized annually.
Please see the webpages for more details on Diamonds and Artificial diamonds.
2006-11-21 00:33:55 · answer #3 · answered by gangadharan nair 7 · 0⤊ 0⤋
Diamonds are made of carbon formed under high pressure at about 200km below the earth.
They CAN be man made, but usually only poor quality industrial stones are made by man. .
2006-11-21 02:59:10 · answer #4 · answered by Anonymous · 0⤊ 1⤋
Besides its millions of compounds, carbon also bonds with itself in different ways to form graphite, diamond, fullerenes and amorphous solids. Under certain conditions, it can also form white carbon - a transparent, biregringent material about which little else seems to be known.
2006-11-21 01:08:11 · answer #5 · answered by Victoria Isabella 2 · 0⤊ 0⤋
Diamonds are formed of pure Carbon. As the structure of diamond is very compact, You need very high pressure and so, you can get it only in volcanic rocks like Kimberlite in south Africa
2006-11-21 00:25:23 · answer #6 · answered by maussy 7 · 0⤊ 1⤋
The hardest substance on the earth..
An extremely hard, highly refractive crystalline form of carbon that is usually colorless and is used as a gemstone and in abrasives, cutting tools, and other applications.
2006-11-21 00:26:37 · answer #7 · answered by Drone 7 · 1⤊ 0⤋
Carbon under high pressures and high heat. They can be man made, but nature will produce them naturally given the right conditions.
2006-11-21 00:20:31 · answer #8 · answered by Anonymous · 1⤊ 0⤋
carbon and lots of pressure from the earth, diamonds cannot be man made...
2006-11-21 00:20:55 · answer #9 · answered by lily 5 · 0⤊ 1⤋
carbon, under tons of pressure over many years, produces diamonds
2006-11-21 00:20:40 · answer #10 · answered by Anonymous · 0⤊ 1⤋
diamonds are comprised solely of the element carbon.
2006-11-22 19:53:40 · answer #11 · answered by Spellympics 2 · 0⤊ 0⤋