Live session #10 Gemstones

Recorded live session in which I discuss some well-known gemstones. When is a mineral actually a gemstone? In this session I show examples of mostly rough crystals of corundum (ruby and sapphire), beryl (emerald, aquamarine

, morganite) and the tourmaline group (including schorl, dravite, elbaite, rubellite, etc.).

In live session #27, I will elaborate on the minerals from the tourmaline group.

Gemologist Henk Rijneveld FGA joined me in a conversation for my podcast on “when do we speak of a gemstone?”, you can find that episode here.