Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of hematite in aquamarine, Tanzania
Partially etched diamond crystal
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusions of gilalite aggregates in rock crystal from Brazil
Midge included in amber from the Baltic coast, polarised light
Spinel crystal in dolomite marble, Burma
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia

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Schweizerische Gemmologische Gesellschaft
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