Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Spinel crystal in dolomite marble, Burma
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Fire opal, Mexico
Agate from Reichweiler, Germany
Twin-crystal of chrysoberyl
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Contact

Societé Suisse de Gemmologie
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c/o BDO AG, Hodlerstrasse 5, 3001 Bern

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