Inclusions of hematite in aquamarine, Tanzania
Inclusions of hematite in aquamarine, Tanzania
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Fluid inclusions in quartz with bituminous daughter minerals, China
Fluid inclusions in quartz with bituminous daughter minerals, China
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
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Inclusion of apatite in ruby from Tanzania
Inclusion of apatite in ruby from Tanzania
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-phase inclusions in tourmaline from Namibia
Two-phase inclusions in tourmaline from Namibia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia