Two-phase inclusions in tourmaline from Namibia
Two-phase inclusion in amethyst, Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Twin-crystal of chrysoberyl
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
«Red fox agate» from Patagonia, Argentina

Current

National course 30.5.2021 - 1.6.2021 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: October 14 / 15, 2019

East Switzerland / Liechtenstein: September 16 / 17, 2019

Ticino: September 21 / 22, 2019