Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-phase inclusions in sapphire, Sri Lanka
Structure in a healing fissure in topaz from Brazil
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
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
Twin-crystal of chrysoberyl

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