There is lots to learn about diffusion treatments in corundum and one thing that does not help matters is the terminology that is used; surface diffusion, lattice diffusion, bulk diffusion? In this week episode Julia discusses these terms and why she uses none of them.
Published 11/10/20
In this episode, we focus on the The Sapphire Gemfields of Queensland, Australia, and also discuss the extraordinary depths of ancient riverbeds deposits as well as the processes of mining these sapphires.
Published 11/06/20