Question

which is the hardest material?​

Answer 1

$hey \: mate$

Currently, diamond is regarded to be the hardest known material in the world. But by considering large compressive pressures under indenters, scientists have calculated that a material called wurtzite boron nitride (w-BN) has a greater indentation strength than diamond.

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Answer 2

Answer:

diamond is the hardest material.

because diamond is the purest form of carbon.