Question

what is the hardest material in the nature​

Answer 1

Answer:

Nacre

Explanation:

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Answer 2

The hardest material yet known is diamond.

It is used in making jewelleries..

Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. At room temperature and pressure, another solid form of carbon known as graphite is the chemically stable form of carbon, but diamond almost never converts to it.