Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusions in sapphire, Sri Lanka
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of hematite in aquamarine, Tanzania
Inclusions of hematite in aquamarine, Tanzania
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
 
 

Actuel

Conférence nationale: 6 - 8 mai 2018 Hôtel de la Paix, Lugano, Tessin

 
 
 
 

 
 

COURS RÉGIONAUX:

Suisse Romande: 30 septembre et 1er octobre 2018 région du Lavaux

Berne: Munich 26-28 octobre 2018

Bâle / Soleure / Argovie et Suisse centrale: Date à être annoncée

Zurich: Date à être annoncée

Suisse Orientale / Liechtenstein: Wildhaus 24-25 septembre 2018

Tessin: Acquacalda 22-23 septembre 2018