On this week's episode, Natalie explains the origin of the Mohs Scale. Watch along as she explains all about how the Mohs Scale started and how to measure the hardness of a mineral.

Subscribe to #JTV: http://www.bit.ly/subscribejtv
Check out JTV's Gemopedia: http://www.jtv.com/library/gemopedia

JTV is one of the leading experts on gemstones and is the best source on YouTube for all things gem related. Featuring gem history, the science behind the stones, gemstones in pop culture, and much more, you too can become a gem expert by immersing yourself in JTV’s channel. Natalie, our host, is a Graduate Gemologist and an Applied Jewelry Professional.


Website: https://www.jtv.com/gemstones
Facebook:   / jtvgems  
Twitter:   / jewelry  
Instagram:   / jtvgems  
Sisk Gemology Reference: http://www.jtv.com/sisk-gemology-refe...