«Red fox agate» from Patagonia, Argentina
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Fluid inclusions in quartz with bituminous daughter minerals, China
Twin-crystal of chrysoberyl
Stress fissure («sun spangle») in baltic amber
Agate from Anzi, Maroc
Bubbles and swirls in moldavite (natural glass)
Colour zoning in ruby from Mong-Shu, Burma


Réservez ces dates :

Conférence nationale 11-13 juin 2023, Seerose, Meisterschwanden

(Photo: ©Seerose Resort & Spa)