Gem-A Live: Understanding Gemstone Species and Varieties

What makes an emerald an emerald and not an aquamarine? Gem-A tutor, Lily Faber FGA DGA, presents this webinar on gemstone species and varieties, providing an overview of the well-known groups beryl, corundum, garnet and quartz. This webinar also covers:

- Chemical Composition
- Inclusions
- Causes of Colour
- Optical Effects

This webinar was created as part of a weekly series of webinars known as Gem-A Live.

Видео Gem-A Live: Understanding Gemstone Species and Varieties канала Gem-A