Blog der Deutschen Gemmologischen Gesellschaft

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Deutsche Gemmologische Gesellschaft e.V.
Prof.-Schlossmacher-Str. 1
D-55743 Idar-Oberstein


Für alle Beiträge behält sich die Deutsche Gemmologische Gesellschaft (Deutsche Gesellschaft für Edelsteinkunde) e.V. sämtliche Rechte vor, insbesondere die des Nachdrucks, der Übersetzung in andere Sprachen und der photomechanischen Wiedergabe. Die veröffentlichten Beiträge stellen – soweit namentlich bezeichnet – die Auffassung der Autoren dar und geben nicht notwendig die Meinung von Herausgeber und Schriftleitung wieder. (Content of this journal may not be reproduced in any form without the permission of the German Gemmological Association. Opinions expressed do not necessarily reflect the views of the Association.)


Comparison of Emeralds from the Chitral District, Pakistan, with other Pakistani and Afghan Emeralds

Emeralds from various deposits in Pakistan (Chitral, Swat and Khaltaro) and Afghanistan (Panjshir and Laghman) were examined and compared. In addition, we compared the...

Moldavite from Chlum, Czech Republic: Mining and Gem Properties

One of the most well known and popular natural glasses is moldavite, which formed during a meteorite impact about 14.8 million years ago. Today, moldavite is mainly obtained from...

Spectroscopic Investigation of Colour and Colour Modification as a Major Topic of Gemstone Research at the DGemG and DSEF

As long as people have adorned themselves with gemstones, they have also tried to enhance the beauty of these natural products. Treatment options have been used for centuries to...

On the Colour Mechanism of Blue Gahnite from Nigeria

Gem-quality blue gahnite from Jemaa in central Nigeria has gemmological properties (RI and SG) and a chemical composition indicating relatively pure gahnite (90.7–91.3%). The...

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