Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Structure in a healing fissure in topaz from Brazil
Structure in a healing fissure in topaz from Brazil
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of gilalite aggregates in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Dendrites in agate
Dendrites in agate
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)