Iridescent natural glass from Mexico
Author(s) : -
Date : 1989
Tags : Mexico / Natural Glass
Iridescent natural glass from Mexico. Published in Journal of Gemmology, 1989.
Author(s): H.A. Haenni
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Edelsteine der Beryl-Gruppe
Author(s) : -
Date : 1989
Edelsteine der Beryl-Gruppe. Published in Schweizerische Uhrmacher- und Goldschmiede-Zeitung, 1989.
Author(s): H.A. Haenni
The Dresden green
Author(s) : -
Date : 1989
The Dresden green. Published in Swiss Watch & Jewelry Journal, 1989.
Author(s): G. Bosshart
Certitude de la détérmination d’origine
Author(s) : -
Date : 1989
Certitude de la détérmination d’origine. Published in Revue AFG, 1989.
Author(s): H.A. Haenni
Irisierendes natürliches Glass aus Mexiko
Author(s) : -
Date : 1989
Tags : Gemmologie / Natürliches Glass
Irisierendes natürliches Glass aus Mexiko. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1989.
Author(s): H.A. Haenni
Les feldspaths
Author(s) : -
Date : 1989
Tags : Feldspaths / Gemmologie
Les feldspaths. Published in Revue A.F.G., 1989.
Author(s): H.A. Haenni
El diamante verde de Dresden
Author(s) : -
Date : 1989
El diamante verde de Dresden. Published in Revista Suiza de relojeria y joyeria, 1989.
Author(s): G. Bosshart
Der Gruene Dresdner
Author(s) : -
Date : 1989
Der Gruene Dresdner. Published in Schweizer Uhren- und Schmuck-Journal, 1989.
Author(s): G. Bosshart
Le Dresde vert
Author(s) : -
Date : 1989
Tags : Diamant / Dresde Vert
Le Dresde vert. Published in Journal Suisse d’Horlogerie et de Bijouterie, 1989.
Author(s): G. Bosshart
The emeralds of Fazenda Boa Esperanca, Taua, Ceara, Brazil: occurence and properties
Author(s) : -
Date : 1988
The emeralds of Fazenda Boa Esperanca, Taua, Ceara, Brazil: occurence and properties. Published in Journal of Gemmology, 1988.
Author(s): D. Schwarz, H.A. Haenni, F.L. Martins Jr, M. Fischer