Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Fluid inclusions in quartz with bituminous daughter minerals, China
Fluid inclusions in quartz with bituminous daughter minerals, China
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
«Red fox agate» from Patagonia, Argentina
«Red fox agate» from Patagonia, Argentina
Natural etching structure on a crystal face of diamond (trigons), polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
Agate from Anzi, Maroc
Agate from Anzi, Maroc
Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma