Midge included in amber from the Baltic coast, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Bubbles and swirls in moldavite (natural glass)
Stress fissure («sun spangle») in baltic amber
Inclusion of apatite in ruby from Tanzania
Structure in a healing fissure in topaz from Brazil
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Two-phase inclusion in amethyst, Brazil
Inclusions of hematite in aquamarine, Tanzania
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