GEMSTONES IN A MINUTE - Tourmaline, Ruby & Sapphire
Enjoy the second and third episodes of original educational series "Gemstones in a Minute". Let's explore #Gemology together in the best way you can imagine - fun, easy, masterly, colorful, FREE and presented by your humble guide Vlad Yavorsky.
In episode 2 you will learn the basic gemological facts about natural Tourmaline: its crystallography and mineralogy, chemical and optical features, colors and varieties, and extraordinary properties such as electric charge.
In episode 3 we are ready to share with you the most valuable information about Corundum: Ruby and Sapphire! You will learn the origins, colors, chemistry, value and all the essentials.