Several thousand years (or more) and the carbon has to be under extreme pressure and heat.
Natural diamonds are produced very deep in the Earth, under great pressure and heat, and some are brought to the surface of the Earth. The carbon source is graphite rather than coal. They also take a long time to grow.Synthetic diamonds are grown in the 'lab' and thin films of diamond produced this way are used in the semiconductor industry as heat sinks under chips. For diamond has the highest thermal conductivity.For more information, see wikipedia.org under diamond, or carbon, or gemstones.
It can take millions to billions of years for coal to transform into a diamond naturally. This process typically occurs deep beneath the Earth's surface under conditions of high pressure and temperature.
It takes millions to billions of years for diamonds to naturally transform into graphite.
No, burning coal is an irreversible change as it involves a chemical reaction that transforms the coal into new substances such as carbon dioxide and ash. Once coal is burned, it cannot be reverted back to its original form.
Diamond is a mineral because it has a crystalline structure, whereas coal is an organic sedimentary rock formed from plant matter. Both are made primarily of carbon, but only diamond fits the definition of a mineral.
Natural diamonds are produced very deep in the Earth, under great pressure and heat, and some are brought to the surface of the Earth. The carbon source is graphite rather than coal. They also take a long time to grow.Synthetic diamonds are grown in the 'lab' and thin films of diamond produced this way are used in the semiconductor industry as heat sinks under chips. For diamond has the highest thermal conductivity.For more information, see wikipedia.org under diamond, or carbon, or gemstones.
It takes extreme pressure and tens of thousands of years, but, yes, if the conditions are right, a diamond can result. Coal and diamonds (and graphite too!) are all made from purely carbon atoms! They are just different forms of the same element! Pretty amazing, eh?!
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It can take millions to billions of years for coal to transform into a diamond naturally. This process typically occurs deep beneath the Earth's surface under conditions of high pressure and temperature.
Gold, fishing, petroleum, coal, forest, diamonds, bauxite, iron ore, and manganese.
millions of years
It takes millions to billions of years for diamonds to naturally transform into graphite.
Diamonds take millions of years to form. Diamond Mining removes large quantities from the earth in a very short time. It's the same reasons behind the depletion of coal stocks !
It takes 8 hours for 30 diamonds or 12 hours for 50 diamonds
No, burning coal is an irreversible change as it involves a chemical reaction that transforms the coal into new substances such as carbon dioxide and ash. Once coal is burned, it cannot be reverted back to its original form.
1-2 years
Diamond is a mineral because it has a crystalline structure, whereas coal is an organic sedimentary rock formed from plant matter. Both are made primarily of carbon, but only diamond fits the definition of a mineral.