Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

What is the hardest natural substance on Earth?

3 Answers

Relevance
  • 2 months ago
    Favorite Answer

    Diamond.

    Two substances that may be harder (it's controversial) are Wurtzite (synthetic boron nitride) and Lonsdaleite (from meteorites).  But they don't fit your definition anyway!

  • ?
    Lv 7
    2 months ago

    Diamonds.         

  • 2 months ago

    Although diamonds commonly known as the hardest material in the world, there are actually six materials that are harder. Diamonds are still one of the hardest naturally occurring and abundant materials on Earth, but these six materials all have it beat. (only the two below are naturally occurring)

    Diamonds remain the most scratch-resistant material known to humanity.

    hardest naturally occurring materials:

    Wurtzite boron nitride.

    Lonsdaleite, carbon with a strange crystalline structure, produced when a meteor hits earth.

Still have questions? Get your answers by asking now.