Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Two-phase inclusions in sapphire, Sri Lanka

Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers

Fluid inclusions in quartz with bituminous daughter minerals, China

Bubbles and swirls in moldavite (natural glass)

Spinel crystal in dolomite marble, Burma

Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

Dumortierite in rock crystal, Brazil, polarised light

Empreinte

Fournisseur du site web :

Société Suisse de Gemmologie
c/o BDO SA
Hodlerstrasse 5
3001 Bern

Web development: Gecko Media

Plan du site
Empreinte
Protection des données
Conditions d'utilisation

© SGG/SSG 2025