Inclusion of apatite in ruby from Tanzania
Dumortierite in rock crystal, Brazil, polarised light
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Fluid inclusions in quartz with bituminous daughter minerals, China
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Structure in a healing fissure in topaz from Brazil
Agate from Anzi, Maroc
Agate from Reichweiler, Germany

Actuel

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Conférence nationale 2025:

15.06. - 17.06.2025

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