Inclusions of gilalite aggregates in rock crystal from Brazil
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusions of hematite in feldspar (sunstone), India
Dumortierite in rock crystal, Brazil, polarised light
Two-phase inclusion in amethyst, Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Midge included in amber from the Baltic coast, polarised light
Two-phase inclusions in sapphire, Sri Lanka

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Swiss Gemmological Society
Secretary: Willy Bieri

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