Pinctada maxima cultured pearls grown beadless in the mantle
Pinctada maxima cultured pearls grown beadless in the mantle. Published in Gems & Gemology, 2008. Author(s): H.A. Haenni
New rubies from central Tanzania
New rubies from central Tanzania. Published in Gems & Gemology, 2008. Author(s): H.A. Haenni
Natural impregnation of a rock by copper minerals
Natural impregnation of a rock by copper minerals. Published in Gems & Gemology, 2008. Author(s): H.A. Haenni
Einige Gedanken zu Jadeit-Jade
Einige Gedanken zu Jadeit-Jade. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 2008. Author(s): H.A. Haenni
Blick hinter die Kulissen: Zuchtperlen aus aller Welt
Blick hinter die Kulissen: Zuchtperlen aus aller Welt. Published in 2008. Author(s): H.A. Haenni
Vanadium-bearing gem-quality tourmalines from Madagascar
Vanadium-bearing gem-quality tourmalines from Madagascar. Published in Journal of Gemmology, 2007. Author(s): K. Schmetzer, H.-J. Bernhardt, C. Dunaigre, H.A. Haenni
Gem-quality taafeeites and musgravites from Africa
Gem-quality taafeeites and musgravites from Africa. Published in Journal of Gemmology, 2007. Author(s): K. Schmetzer, M.S. Krzemnicki, H.A. Haenni, H.-J. Bernhardt, T. Pettke
Perlenzucht mit Pinctada maxima in Südost-Asien – ein Beispiel
Perlenzucht mit Pinctada maxima in Südost-Asien – ein Beispiel. Published in 2007. Author(s): H.A. Haenni
Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LAICPMS), a new method for gemstone analysis
Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LAICPMS), a new method for gemstone analysis. Published in GAHK Journal, 2007. Author(s): M.S. Krzemnicki, T. Pettke, H.A. Haenni
The Origin Determination of Gemstones: Challenges and Perspectives
The Origin Determination of Gemstones: Challenges and Perspectives. Published in InColor, 2007. Author(s): M.S. Krzemnicki