Global Agency of Geosciences Experts
Anyone, curious about, interested in or passionated by Earth Sciences
Etymology
Crystallography
Crystal chemistry
3.1 Corundum-hematite group
Synonymy
Varieties and mixing
Gitology
Associated minerals
Usefulness
Gemstones
Grinding
Trade
Corunduming
Watchmaking
If you require a classroom training or a video training we’ll put you in contact with the best professor teaching in the language of your choice.
© 2022 All rights reserved