Hardness scale {Moh's scale} {Moh scale} goes from 1 to 10. Diamond is 10. Cubic boron nitride is 9.5. Corundum is 9. Quartz is 7. Glass is 6. Steel is 5. Fluorite is 4. Calcite is 3. Salt is 2. Talc is 1.
Physical Sciences>Earth Science>Mineral>Properties>Hardness
5-Earth Science-Mineral-Properties-Hardness
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Date Modified: 2022.0224