Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Fire opal, Mexico
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Twin-crystal of chrysoberyl

Objectives

The Swiss Gemmological Society has the following objectives:

  • To promote the gemmological knowledge of its members
  • To extend this knowledge through annual training and to pass on the benefits thereof to the gemstone and pearl trades in the industry
  • Protect the interest of the purchasing public
  • Maintain ethical business practices, combat unfair competition and comply with the international guidelines of the diamond, gemstone and pearl trades