Inclusion of apatite in ruby from Tanzania
Inclusion of apatite in ruby from Tanzania
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
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
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Agate from Anzi, Maroc
Agate from Anzi, Maroc
«Red fox agate» from Patagonia, Argentina
«Red fox agate» from Patagonia, Argentina
Partially etched diamond crystal
Partially etched diamond crystal
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany