Midge included in amber from the Baltic coast, polarised light
Structure in a healing fissure in topaz from Brazil
Natural etching structure on a crystal face of diamond (trigons), polarised light
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Bubbles and swirls in moldavite (natural glass)
Inclusions of gilalite aggregates in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusion of apatite in ruby from Tanzania

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