← All lists

Top 5 hardest minerals on the Mohs scale

evergreen

Mohs hardness number

Snapshot · 2026-08-09

  1. 1

    Diamond

    10

  2. 2

    Corundum (ruby/sapphire)

    9

  3. 3

    Topaz

    8

  4. 4

    Quartz

    7

  5. 5

    Orthoclase feldspar

    6