David Gray
- 24 Luglio 2017
![](https://www.fpezzotta.net/wp-content/uploads/2016/10/1-1.jpg)
- Prev Austin Evon
Mineralogy Museum Curator Museo di Storia Naturale
Corso Venezia 55, 20121 Milano, Italy
Consultant in: Minerals and gems, mining;
Mineral specimens preparation.
Gem Research and M. C.P. Srl , Milano - Italy