Fire opal, Mexico
Fire opal, Mexico
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Agate from Anzi, Maroc
Agate from Anzi, Maroc
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of gilalite aggregates in rock crystal from Brazil
Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma
 
 

Aktuelles

Nationale Tagung: 28.-30. April 2019 Meisterschwanden, Kanton Aargau

 
 
 
 

 
 

REGIONALE KURSE:

Suisse Romande: 30. September und 1. Oktober 2018 Lavaux Region

Bern: München 26.-28. Oktober 2018

Basel / Solothurn / Aargau und Zentralschweiz: Termin wird noch bekannt gegeben

Zürich: Termin wird noch bekannt gegeben

Ostschweiz / Liechtenstein: Wildhaus 24.-25. September 2018

Tessin: Acquacalda 22.-23. September 2018