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 diamond is regarded to be the hardest material in the world.
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The Brainliest Answer!
Diamond was considered to be the hardest material of all but now scientist have discovered a new material more harder than diamond, called Wurtiz Boron Nitride(w-BN) and Lonsdaleite(made of carbon and diamond) is even harder than w-BN. It was one of the recent viral news on internet!!!
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