Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Natural etching structure on a crystal face of diamond (trigons), polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusions in sapphire, Sri Lanka
«Red fox agate» from Patagonia, Argentina
«Red fox agate» from Patagonia, Argentina
Twin-crystal of chrysoberyl
Twin-crystal of chrysoberyl
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma