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: | ||
| + | #[[Talc]] | ||
| + | #[[Gypsum]] | ||
| + | #[[Calcite]] | ||
| + | #[[Fluorite]] | ||
| + | #[[Apatite]] | ||
| + | #[[Feldspar]] | ||
| + | #[[Quartz]] | ||
| + | #[[Topaz]] | ||
| + | #[[Corundum]] | ||
| + | #[[Diamond]] | ||
| + | |||
| + | ==Reference== | ||
| + | |||
| + | <references/> | ||
| + | |||
| + | [[Category:Geology]] | ||
| + | [[Category:Minerals]] | ||
Revision as of 00:40, January 21, 2013
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: