Paraiba Tourmaline

Posted on July 1, 2020 by Çigdem Lüle, PhD., FGA, GIA GG, DGA

Tourmaline is one of the most popular and complex gemstones and has a long history. Due to its rich chemistry and growth conditions, it comes not only in many different colors but also in unusual…

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