Category: jewelry watches gemstones

Question:
sometimes rely on hardness of gemstones to distinguish between true and false, then in the end how it measured?

Answer:
not “Mohs factor”! but “hardness”!
gemstone’s hardness is the resistance to other substances, precious stones carved and abrasion capabilities. Specific tests gemstones hardness, commonly used hardness tester.
hardness was in 1822 by the French mineralogist Moss (Mohrs) selection of 10 kinds of nature, the relative hardness of minerals produced, generally known as “Mohs hardness” (Mohrs ’scale). This hardness has been in use of mineral industry and jewelry industry forward and has nearly 200 years.
selected 10 kinds of minerals in accordance with their degree of hardness is divided into 10, the greater the hardness of the more series Great.
1 Class: talc (talc)
2 Class: gypsum (gypsum)
3 Class: calcite (calcite)
4 grades: fluorite (fluorite)
5 Class: apatite (apatite)
6 Class: Long stone (feldspar)
7 Class: quartz (quartz)
8 Class: Topaz (topaz)
9 Class: corundum (corundum)
10 Class: diamond (diamond, gem-quality diamond to achieve, that i…