Structure in a healing fissure in topaz from Brazil
Structure in a healing fissure in topaz from Brazil
Midge included in amber from the Baltic coast, polarised light
Midge included in amber from the Baltic coast, polarised light
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Fluid inclusions in quartz with bituminous daughter minerals, China
Fluid inclusions in quartz with bituminous daughter minerals, China
Dendrites in agate
Dendrites in agate
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Twin-crystal of chrysoberyl
Twin-crystal of chrysoberyl
 
 

Current

National course 6 - 8 May 2018 Hotel de la Paix, Lugano, Ticino

 
 
 
 

 
 

REGIONAL COURSES:

Suisse Romande: September 30 and October 1, 2018 Lavaux region

Bern: Munich 26-28 October 2018

Basel / Solothurn / Aargau and Central Switzerland: Date to be announced

Zurich: Date to be announced

East Switzerland / Liechtenstein: Wildhaus 24-25 September 2018

Ticino: Acquacalda 22-23 September 2018