Inclusions of hematite in aquamarine, Tanzania
Inclusions of hematite in aquamarine, Tanzania
Fire opal, Mexico
Fire opal, Mexico
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
 
 

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Swiss Gemmological Society
Secretary: Antoinette Starkey
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