Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Partially etched diamond crystal
Partially etched diamond crystal
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fire opal, Mexico
Fire opal, Mexico
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma
Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Two-phase inclusions in tourmaline from Namibia
Two-phase inclusions in tourmaline from Namibia