Structure in a healing fissure in topaz from Brazil
Structure in a healing fissure in topaz from Brazil
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed 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)
Agate from Anzi, Maroc
Agate from Anzi, Maroc
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
 
 

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