Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Agate from Reichweiler, Germany
Two-phase inclusions in sapphire, Sri Lanka
Bubbles and swirls in moldavite (natural glass)
Inclusions of hematite in aquamarine, Tanzania
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Midge included in amber from the Baltic coast, polarised light

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