Advancements in gemmological instrumentation over the last 30 years
Advancements in gemmological instrumentation over the last 30 years. Published in GAHK Journal, 2009. Author(s): H.A. Haenni
Flux-grown synthetic red spinels on the market again
Flux-grown synthetic red spinels on the market again. Trade alert published in 2008. Author(s): M.S. Krzemnicki
Serpentinite artefact resembling Libyan desert glass
Serpentinite artefact resembling Libyan desert glass. Published in Gems & Gemology, 2008. Author(s): M.S. Krzemnicki
New Tanzania mine uncovers source of exceptional rubies
New Tanzania mine uncovers source of exceptional rubies. Published in InColor, 2008. Author(s): M.S. Krzemnicki, H.A. Haenni
Les perles: la beauté dans la diversité
Les perles: la beauté dans la diversité. Published in GoldOr, 2008. Author(s): M.S. Krzemnicki
Hart und spröde: Diamonds are (fast) forever!?
Hart und spröde: Diamonds are (fast) forever!?. Published in GoldOr, 2008. Author(s): M.S. Krzemnicki
Echte Perlen: Die Schönheit der Vielfalt
Echte Perlen: Die Schönheit der Vielfalt. Published in GoldOr, 2008. Author(s): M.S. Krzemnicki
Durs et fragiles: Diamonds are (presque) forever !?
Durs et fragiles: Diamonds are (presque) forever !?. Published in GoldOr, 2008. Author(s): M.S. Krzemnicki
More natural pearls tested in labs
More natural pearls tested in labs. Published in Jewellery News Asia, 2008. Author(s): H.A. Haenni
Twinned cultured pearl
Twinned cultured pearl. Published in Gems & Gemology, 2008. Author(s): H.A. Haenni