Regardless of the pressure, diamond is always made from 100% carbon.
The element is carbon.
Basically a diamond is just an allotrope (a form) of the element carbon. It's made by carbon under very high pressure.
Carbon is the element that forms both coal and diamonds. The difference in their structure and properties is due to the conditions under which they are formed - coal forms under low pressure and temperature, while diamonds form under high pressure and temperature.
Diamond is made up of Carbon atoms under tremendous temperature. After it melts, it sinks further below in the earth's mantle. Subjected to tremendous pressure, after a few billion years, diamond is formed. The mantle is a part of earth's lithosphere, which is below the crust, usually between 35- 2900 miles deep.
A diamond forms deep in the Earth's mantle under high pressure and temperature conditions, where carbon atoms are arranged in a crystal lattice structure. This process takes millions of years. Charcoal, on the other hand, is a result of partially burned organic matter and does not undergo the same process as diamond formation.
No. Dissolved gasses trapped under pressure provide the force.
Coal has never been at sufficient depth and temperature to be turned into diamond. Coal is simply fossilized plant remains that are high in the element carbon, of which the mineral diamond is also composed.
Diamond is the gemstone that is formed under extreme pressure deep within the Earth's mantle. The intense heat and pressure cause carbon atoms to crystallize into diamond over millions of years.
The iron is in a crystalline structure under tremendous pressure.
If put under tremendous pressure for millions of years - which is what happened to slate and sandstone.
Graphite turns into diamonds when put under extreme pressure and heat. Diamond is a denser and harder form of carbon compared to graphite.
No, diamonds are formed under immense heat and pressure.