Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of gilalite aggregates in rock crystal from Brazil
Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Inclusions of hematite in feldspar (sunstone), India
Inclusions of hematite in feldspar (sunstone), India
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Fire opal, Mexico
Fire opal, Mexico
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
 
 

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