Category Archives: Gemstone knowledge

Bicolor tourmaline crystals from vietnam – Vietnamese tourmaline

This is where I share my knowledge about some type of gemstones I have the chance tt come into contact

Tourmaline from Vietnam – Things perhaps you do not know
13/05/2023 Nguyễn Tâm

I have been dealing tourmaline from Afghanishtan and tourmaline from Vietnam. Therefore, I noticed tourmaline from different places has distinguished features and in this writting,...