Hardness scales

Hardness scales may refer to:

Methods of measuring mineral hardness

• Scratch hardness
  • The Mohs scale of mineral hardness
• The Vickers hardness test
• The Brinell scale
• The Janka hardness test
• The Rockwell scale
• The Durometer scale
• The Barcol scale
• The Leeb rebound hardness scale
• The Rosiwal scale
• The Meyer hardness test
• The Knoop hardness test

Other hardness scales

Hardness scales may also refer to:

• Methods of measuring the deposit formation by hard water.
• The scale of Pencil hardness