Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Twin-crystal of chrysoberyl
Twin-crystal of chrysoberyl
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Two-phase inclusions in tourmaline from Namibia
Two-phase inclusions in tourmaline from Namibia
 
 

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Conférence nationale: 28-30 avril 2019 Meisterschwanden, Kanton Aargau

 
 
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COURS RÉGIONAUX:

Suisse Romande: 30 septembre et 1er octobre 2018 région du Lavaux

Berne: Munich 26-28 octobre 2018

Bâle / Soleure / Argovie et Suisse centrale: Date à être annoncée

Zurich: Date à être annoncée

Suisse Orientale / Liechtenstein: Wildhaus 24-25 septembre 2018

Tessin: Acquacalda 22-23 septembre 2018