Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusions of gilalite aggregates in rock crystal from Brazil
Two-phase inclusions in sapphire, Sri Lanka
Midge included in amber from the Baltic coast, polarised light
Agate from Reichweiler, Germany
Bubbles and swirls in moldavite (natural glass)
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

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Schweizerische Gemmologische Gesellschaft
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