Agate from Anzi, Maroc
Inclusions of hematite in aquamarine, Tanzania
Two-phase inclusions in tourmaline from Namibia
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of gilalite aggregates in rock crystal from Brazil
Stress fissure («sun spangle») in baltic amber
Natural etching structure on a crystal face of diamond (trigons), polarised light
«Red fox agate» from Patagonia, Argentina

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