Other questions in this quiz

2. What hardness is Fluorite

  • 4
  • 8
  • 3

3. What reference mineral is a hardness 3?

  • Apatite
  • Calcite
  • Corundum

4. What hardness is Quartz?

  • 7
  • 9
  • 2

5. What hardness is Topaz?

  • 9
  • 8
  • 6

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