Das strahlende Blau der behandelten Topase
Author(s) : -
Date : 1993
Das strahlende Blau der behandelten Topase. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1993.
Author(s): M. Huegi
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Research Library
Why epoxy-filled emeralds must be accepted
Author(s) : -
Date : 1993
Tags : Artificial Resin / Canada Balsam / Emeralds / Epoxy / Fissure Filling / Gemmology / Oil / Treatment
Why epoxy-filled emeralds must be accepted. Published in 1993.
Author(s): H.A. Haenni
Origin determination for gemstones: possibilities, restrictions, reliability
Author(s) : -
Date : 1993
Origin determination for gemstones: possibilities, restrictions, reliability. Published in 1993.
Author(s): H.A. Haenni
La synthése hydrothermale en Australie: émeraude et béryl rose
Author(s) : -
Date : 1993
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
Author(s) : -
Date : 1993
Hydrothermal synthetic emeralds from Australia: emeralds and pink beryls. Published in 1993.
Author(s): H.A. Haenni
Glassy fillings: a loupe just isn’t enough
Author(s) : -
Date : 1993
Glassy fillings: a loupe just isn’t enough. Published in ICA Gazette, 1993.
Author(s): H.A. Haenni
Filled emeralds: please face reality
Author(s) : -
Date : 1993
Filled emeralds: please face reality. Published in ICA Gazette, 1993.
Author(s): H.A. Haenni
A new synthetic ruby from Greece poses challenges for gemmologists
Author(s) : -
Date : 1993
A new synthetic ruby from Greece poses challenges for gemmologists. Published in Rapaport Diamond Magazine, 1993.
Author(s): H.A. Haenni
New fracture-filling materials have replaced oil
Author(s) : -
Date : 1992
New fracture-filling materials have replaced oil. Published in ICA Gazette, 1992.
Author(s): H.A. Haenni
Identifications des fissures traitées
Author(s) : -
Date : 1992
Identifications des fissures traitées. Published in Revue A.F.G., 1992.
Author(s): H.A. Haenni