What type of Natural Resources are Diamonds?

Diamonds are a mineral, composed solely of a special crystal form of the element carbon. It is usually considered the hardest substance. It also has a very high thermal conductivity. But it can be destroyed by heat.

It has use in jewellery, as an industrial abrasive, as a thermal conductor (with semiconductors).

In nature it is created in volcanic pipes, though nowadays it can also be made in the laboratory.