Mohs Scale is used to determne the hardness of a rock or stone. It measures the scratch resistance of a rock/stone by looking to see if other rocks/stones can scratch the rock/stone in question. The scale goes from 1 to 10 with 1 the least hard to 10, the most hard. A diamond has a Mohs Scale value of 10 and talc has a value of 1.
Source:
http://en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness
http://en.wikipedia.org/wiki/File:Topaz_cut.jpg
No comments:
Post a Comment