Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Dendrites in agate
Dendrites in agate
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Natural etching structure on a crystal face of diamond (trigons), polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
Inclusion of apatite in ruby from Tanzania
Inclusion of apatite in ruby from Tanzania
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
 
 

Central Course / EGS 2017 (European Gemological Symposium)

29 June to 1 July 2017, Zermatt

Registration:
SGS Congress from 29 june to 02 july 2017
Grand Hotel Zermatterhof, Zermatt

Antoinette Starkey
Secretary SGG
c/o Antoinette Starkey Pierres Précieuses
Précieuses Bureau 201, Rue du Rhône 69
1207 Genf
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Regional events:

  • Group 1 Suisse romande: 23. - 24. October 2016
  • Group 2 Berne: 23. - 24. October 2017
  • Group 3 Basel / Solothurn / Aarau and Group 4 Central Switzerland: 31. October 2016
  • Group 5 Zurich: 18. - 19. October 2016
  • Group 6 East Switzerland: 26. - 27. September 2016; 25. - 26. September 2017
  • Group 7 Ticino: 1. - 2. October 2016