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Schweizerische Gemmologische Gesellschaft
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Twin-crystal of chrysoberyl
Bubbles and swirls in moldavite (natural glass)
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Partially etched diamond crystal
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Spinel crystal in dolomite marble, Burma
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Agate from Reichweiler, Germany

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  • Gemmology
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