Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Two-phase inclusions in tourmaline from Namibia
Dumortierite in rock crystal, Brazil, polarised light
Agate from Reichweiler, Germany
Stress fissure («sun spangle») in baltic amber
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Dendrites in agate

Kontakt

Schweizerische Gemmologische Gesellschaft
Sekretariat: Rébecca Michelot
c/o BDO AG, Hodlerstrasse 5, 3001 Bern

T. +41 79 668 6989
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