Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Bubbles and swirls in moldavite (natural glass)
Agate from Reichweiler, Germany
Midge included in amber from the Baltic coast, polarised light
Inclusions of gilalite aggregates in rock crystal from Brazil
«Red fox agate» from Patagonia, Argentina
Inclusions of hematite in feldspar (sunstone), India
Inclusions of fossil plant debris in opal from Wollo, Ethiopia

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