Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of gilalite aggregates in rock crystal from Brazil
Natural etching structure on a crystal face of diamond (trigons), polarised light
Bubbles and swirls in moldavite (natural glass)
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Two-phase inclusions in sapphire, Sri Lanka
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
«Red fox agate» from Patagonia, Argentina
Spinel crystal in dolomite marble, Burma
Twin-crystal of chrysoberyl
Des sponsors généreux de notre 75e anniversaire
Diamond Sponsors
Ruby Sponsors
Spinel Sponsors
