Gem Focus – October 2021

Posted on October 13, 2021 by Çiğdem Lüle, PhD, FGA, GIA GG, DGA

Prasiolite: The least understood variety of quartz. The idea of “common” might discourage gaining further knowledge about a gemstone. The quartz group gems, as common as they are, seem to be the least understood not only…

GemWorld articles are accessible by GemGuide members only.
Already a member?

Click here and Login

To access our archive of articles and get many other great features and benefits, become a member now!

Become a member