«Red fox agate» from Patagonia, Argentina
«Red fox agate» from Patagonia, Argentina
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Partially etched diamond crystal
Partially etched diamond crystal
Fluid inclusions in quartz with bituminous daughter minerals, China
Fluid inclusions in quartz with bituminous daughter minerals, China
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Dendrites in agate
Dendrites in agate
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Natural etching structure on a crystal face of diamond (trigons), polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
 
 
Farewell to Prof. Dr. Henry A. Hänni 1945 - 2025
Mit grosser Trauer geben wir den Verlust unseres Ehrenmitglieds Prof. Dr. Henry A. Hänni bekannt.
Er war einer der bedeutendsten Gemmologen unserer Zeit und hat die Gemmologie nachhaltig geprägt. Sein Vermächtnis wird weiterleben.
Prof. Dr. Henry Hänni verliess uns an seinem 80. Geburtstag, dem 9. Januar 2025. Unser Mitgefühl gilt seiner Familie und seinen Angehörigen.