Diopside needles as inclusions in demantoid garnet from Russia: A Raman microspectrometric study
Diopside needles as inclusions in demantoid garnet from Russia: A Raman microspectrometric study. Published in Gems & Gemology, 1999. Author(s): M.S. Krzemnicki
Les grenats gemmes
Les grenats gemmes. Published in Revue A.F.G., 1999. Author(s): H.A. Haenni
Distinction of taaffeite and musgravite
Distinction of taaffeite and musgravite. Published in Journal of Gemmology, 1998. Author(s): L. Kiefert, K. Schmetzer
Graeserite, a new mineral species from the derbylite group from the Monte Leone nappe, Binntal region, eastern Alps, Switzerland
Graeserite, a new mineral species from the derbylite group from the Monte Leone nappe, Binntal region, eastern Alps, Switzerland. Published in Canadian Mineralogist, 1998. Author(s): M.S. Krzemnicki, E. Reusser
Das strahlende Blau der behandelten Topase
Das strahlende Blau der behandelten Topase. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1993. Author(s): M. Huegi
La synthèse hydrothermale en Australie: émeraude et béryl rose
La synthése hydrothermale en Australie: émeraude et béryl rose. Published in Journal Suisse d’Horlogerie et de Bijouterie, 1993. Author(s): H.A. Haenni
Ursache des Katzenaugen-Effekts bei erhitzten Zirkonen aus Sri Lanka
Ursache des Katzenaugen-Effekts bei erhitzten Zirkonen aus Sri Lanka. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1989. Author(s): H.A. Haenni
Les gemmes du groupes des béryls
Les gemmes du groupes des béryls. Published in Journal Suisse des horlogers et bijoutiers-orfèvres, 1989. Author(s): H.A. Haenni
Iridescent natural glass from Mexico
Iridescent natural glass from Mexico. Published in Journal of Gemmology, 1989. Author(s): H.A. Haenni
Edelsteine der Beryl-Gruppe
Edelsteine der Beryl-Gruppe. Published in Schweizerische Uhrmacher- und Goldschmiede-Zeitung, 1989. Author(s): H.A. Haenni