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diamonds
Diamonds are made up of carbon atoms which have been placed under extreme pressure and ultra high heat for millions of years.
Diamonds are made up of carbon atoms which have been placed under extreme pressure and ultra high heat for millions of years.
Carbon, extreme pressure, and extreme heat.
Yes. It is made from carbon being compressed by ultra high pressure and extreme high heat over millions of years within the earth's mantel..
The element is carbon.
Extreme pressure and geological periods of time are required.
Diamonds are formed from carbon. Copper is formed from its metallic atoms. Both are formed deep within the Earth's mantle, under extreme pressure over millions, possibly billions of years.
Sometimes, diamonds form.
It would be liquid carbon, but it's only possible to make it under very extreme pressure.
A diamond is carbon in a pure form that is made deep in the earth under extreme heat and pressure.
That really depends on the exact pressure. Look at the Wikipedia article "Carbon#Characteristics" (article "Carbon" section "Characteristics"). Especially, take a look at the phase diagram.