«Red fox agate» from Patagonia, Argentina
«Red fox agate» from Patagonia, Argentina
Twin-crystal of chrysoberyl
Twin-crystal of chrysoberyl
Two-phase inclusions in tourmaline from Namibia
Two-phase inclusions in tourmaline from Namibia
Natural etching structure on a crystal face of diamond (trigons), polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil