Agee hydrothermal synthetic emeralds
Agee hydrothermal synthetic emeralds. Published in JewelSiam, 1995. Author(s): H.A. Haenni, L. Kiefert
Preliminary results on Agee hydrothermal synthetic emeralds
Preliminary results on Agee hydrothermal synthetic emeralds. Published in 1994. Author(s): H.A. Haenni, L. Kiefert
Émeraudes synthétiques hydrothermales Agee – Hydrothermal-synthetische Smaragde von Agee
Émeraudes synthétiques hydrothermales Agee – Hydrothermal-synthetische Smaragde von Agee. Published in 1994. Author(s): H.A. Haenni, L. Kiefert, J.-P. Chalain
Why epoxy-filled emeralds must be accepted
Why epoxy-filled emeralds must be accepted. Published in 1993. Author(s): H.A. Haenni
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
Hydrothermal synthetic emeralds from Australia: emeralds and pink beryls
Hydrothermal synthetic emeralds from Australia: emeralds and pink beryls. Published in 1993. Author(s): H.A. Haenni
Filled emeralds: please face reality
Filled emeralds: please face reality. Published in ICA Gazette, 1993. Author(s): H.A. Haenni
New fracture-filling materials have replaced oil
New fracture-filling materials have replaced oil. Published in ICA Gazette, 1992. Author(s): H.A. Haenni
Considérations terminologiques au sujet des émeraudes du Nigéria de couleur bleu-vert
Considérations terminologiques au sujet des émeraudes du Nigéria de couleur bleu-vert. Published in Revue A.F.G., 1992. Author(s): H.A. Haenni
Blue-green emerald from Nigeria (a consideration of terminology)
Blue-green emerald from Nigeria (a consideration of terminology). Published in Australian Gemmologist, 1992. Author(s): H.A. Haenni