Agate from Reichweiler, Germany
Structure in a healing fissure in topaz from Brazil
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusion of apatite in ruby from Tanzania
Twin-crystal of chrysoberyl
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Agate from Anzi, Maroc
Natural etching structure on a crystal face of diamond (trigons), polarised light

Contact

Societé Suisse de Gemmologie
Secrétariat: Rébecca Michelot
c/o BDO AG, Hodlerstrasse 5, 3001 Bern

T. +41 79 668 6989
E. info@gemmologie.ch