New spectral evidence for GE POL diamond detection
New spectral evidence for GE POL diamond detection. Published in Gems & Gemology, 2000. Author(s): H.A. Haenni, J.-P. Chalain, E. Fritsch
Zur Bestimmung von GE POL Diamanten: erste Erkenntnisse
Zur Bestimmung von GE POL Diamanten: erste Erkenntnisse. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 2000. Author(s): J.-P. Chalain, E. Fritsch, H.A. Haenni
Identification of GE POL diamonds: a second step
Identification of GE POL diamonds: a second step. Published in Journal of Gemmology, 2000. Author(s): J.-P. Chalain, E. Fritsch, H.A. Haenni
Identification of colourless HPHT treated diamonds (e.g. GE POL)
Identification of colourless HPHT treated diamonds (e.g. GE POL). Published in 2000. Author(s): J.-P. Chalain, E. Fritsch, H.A. Haenni
Detection of GE POL treated diamonds
Detection of GE POL treated diamonds. Published in 2000. Author(s): J.-P. Chalain, H.A. Haenni, E. Fritsch
Identification of filler substances in emeralds by infrared and Raman spectroscopy
Identification of filler substances in emeralds by infrared and Raman spectroscopy. Published in Journal of Gemmology, 1999. Author(s): H.A. Haenni
Mise à jour sur la détermination des substances de remplissage dans les emeraudes
Mise à jour sur la détermination des substances de remplissage dans les emeraudes. Published in Revue A.F.G., 1999. Author(s): J.-P. Chalain
Détection des diamants GE POL
Détection des diamants GE POL. Published in Revue A.F.G., 1999. Author(s): J.-P. Chalain, H.A. Haenni, E. Fritsch
Detection of GE POL diamonds: a first stage
Detection of GE POL diamonds: a first stage. Published in Revue A.F.G., 1999.
Short notes on some gemstone treatments
Short notes on some gemstone treatments. Published in GAHK Journal, 1998. Author(s): H.A. Haenni