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17 answers

Do you mean a 'real diamond' or man-made?

2006-07-15 03:10:53 · answer #1 · answered by bluejeanrose 3 · 0 0

By dating the minerals trapped inside diamonds, scientists learned that they were formed between 600 million and three billion years ago. But how long did it take nature to make a diamond? Did diamonds form slowly over millions of years? Or did they coalesce quickly - perhaps during their explosive race to the surface inside volcanic plumes of molten kimberlite? To find out, scientists would have to replicate the heat and pressure found within the earth's mantle. Only then might they be able to break down the atoms of graphite and see whether they would re-form as diamond. But the GE team had little idea what the right combination of temperature and pressure should be.

You can take such a yellow diamond with nitrogen in it and heat it for a long time. Hours. And the yellow gradually disappear because the nitrogen atoms begin to combine with each other, but it's a very long, slow process and we never got one to go pure colorless, but we just did enough to show that that was the way natural diamonds come out colorless sometimes.

2006-07-15 03:10:52 · answer #2 · answered by Anonymous · 0 0

Now that is a great question dear you get a A plus.
I believe that diamonds are formed from coal but they do have diamond minds where they harvest uncut diamonds.
As for how long it took to form I can only guess, It takes time and lots and lots of pressure, my guess is about 2 to 3 hunderd years maybe more.

2006-07-15 03:12:23 · answer #3 · answered by Mr. Clean 3 · 0 1

With the invention of the radio spectrometer scientists have had the instrument capable of recording the smaller microscopic elements.

It's used to detect carbon-14 in coal as well as diamonds. Carbon 14's half-life is 5700 years. Based on evolutionary models carbon-14 (converting to carbon-12) should be eliminated out of the atmosphere in 50,000 years. With this process carbon-14 was found in diamonds. Based on this info you could reasonably conclude preclude the idea that diamonds formed over billions of years. If, in a lab, we have subjected coal to similar pressure and heat required to form diamonds, then that's additional evidence that they form much quicker than we have traditionally thought.

2016-06-03 08:21:09 · answer #4 · answered by Anthony Coleman 1 · 0 0

that actually depends on the type of diamonds -- natural diamonds verses man made -- natural diamonds are unknown because they form in the ground -- man made -- about 12 hours per carat

2006-07-15 03:21:25 · answer #5 · answered by d2bcathie 3 · 0 0

Depends on the pressure exerted on the diamond. Superman could do it in seconds. LOL!

2006-07-15 03:07:44 · answer #6 · answered by whozethere 5 · 0 0

I planted a diamond three years ago but nothing has grown yet - I'll keep you informed

2006-07-15 03:09:30 · answer #7 · answered by jonnygaijin 5 · 0 0

Thousands of years.

2006-07-15 03:07:36 · answer #8 · answered by Anonymous · 0 0

Thousands of years.

2006-07-15 03:07:23 · answer #9 · answered by LuLuBelle 4 · 0 0

the laser cuts but takes a long time thats why ther expencive

2006-07-15 05:45:31 · answer #10 · answered by AvesPro 5 · 0 0

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