Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Fluid inclusions in quartz with bituminous daughter minerals, China
Fluid inclusions in quartz with bituminous daughter minerals, China
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Agate from Anzi, Maroc
Agate from Anzi, Maroc
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Natural etching structure on a crystal face of diamond (trigons), polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
 
 

Current

National course June 7 - 9, 2020 Alpenrose Wildhaus, St Gallen

 
 
 
 

 
 

REGIONAL COURSES:

Suisse Romande: Septembre 29 / 30, 2019

Bern: October 21 / 22, 2019

Basel / Solothurn / Aargau and Central Switzerland: November 4, 2019

Zurich: November 2019

East Switzerland / Liechtenstein: September 16 / 17, 2019

Ticino: September 21 / 22, 2019