Difference between revisions of "Mohs Hardness Scale"

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The '''Mohs hardness scale''' for minerals has been used since 1822,<ref>[http://www.gordonengland.co.uk/hardness/mohs.htm]</ref> having been devised by Friedrich Mohs in 1812. It simply consists of 10 minerals arranged in order from 1 to 10. Diamond is rated as the hardest and is indexed as 10; talc as the softest with index number 1. Each mineral in the scale will scratch all those above it as follows:
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The '''Mohs hardness scale''' for minerals has been used since 1822,<ref>http://www.gordonengland.co.uk/hardness/mohs.htm</ref> having been devised by [[Friedrich Mohs]] in 1812. It simply consists of 10 minerals arranged in order from 1 to 10. Diamond is rated as the hardest and is indexed as 10; talc as the softest with index number 1. Each mineral in the scale will scratch all those above it as follows:
 
#[[Talc]]
 
#[[Talc]]
 
#[[Gypsum]]
 
#[[Gypsum]]
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==Reference==
 
==Reference==
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[[Category:Geology]]
 
[[Category:Geology]]
 
[[Category:Minerals]]
 
[[Category:Minerals]]

Revision as of 04:44, September 14, 2007

The Mohs hardness scale for minerals has been used since 1822,[1] having been devised by Friedrich Mohs in 1812. It simply consists of 10 minerals arranged in order from 1 to 10. Diamond is rated as the hardest and is indexed as 10; talc as the softest with index number 1. Each mineral in the scale will scratch all those above it as follows:

  1. Talc
  2. Gypsum
  3. Calcite
  4. Fluorite
  5. Apatite
  6. Feldspar
  7. Quartz
  8. Topaz
  9. Corundum
  10. Diamond


Reference

  1. http://www.gordonengland.co.uk/hardness/mohs.htm