Incoming activity to BEL: Prof. Dr. Hans-Juergen Gawlick from Montanuniversitaet in Leoben, Austria
Prof. H-J. Gawlick split his activities into several parts: he gave a course: “Siliceous sedimentary rocks – theoretical background, look
Our website was born
Without any financial support, the website is done by our friends GemHunters – David Lazić and Nikola Aritonović.