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1996

Investigations on sapphires from an alkali basalt, South West Rwanda

Investigations on sapphires from an alkali basalt, South West Rwanda. Published in Journal of Gemmology, 1996. Author(s): M.S. Krzemnicki, H.A. Haenni, R. Guggenheim, D. Mathys

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Authors

  • D. Mathys
  • H.A. Haenni
  • M.S. Krzemnicki
  • R. Guggenheim
Research Articles
OriginsSapphire
1996

Ein neues Vorkommen im Süden von Madagaskar

Ein neues Vorkommen im Süden von Madagaskar. Published in 1996. Author(s): L. Kiefert, K. Schmetzer, M.S. Krzemnicki, H.-J. Bernhardt, H.A. Haenni

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Authors

  • H.-J. Bernhardt
  • H.A. Haenni
  • K. Schmetzer
  • L. Kiefert
  • M.S. Krzemnicki
Research Articles
OriginsSapphire
1991

Edelsteine der Korundgruppe

Edelsteine der Korundgruppe. Published in Schweirische Uhrmacher- und Goldschmiede Zeitung, 1991. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
RubySapphire
1990

Ein Beitrag zu den Erkennungsmerkmalen der Kaschmir-Saphire

Ein Beitrag zu den Erkennungsmerkmalen der Kaschmir-Saphire. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1990. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire
1990

A contribution to the distinguishing characteristics of sapphires from Kashmir

A contribution to the distinguishing characteristics of sapphires from Kashmir. Published in Journal of Gemmology, 1990. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire
1990

Einige gemmologische Aspekte bei ostafrikanischen Korunden

Einige gemmologische Aspekte bei ostafrikanischen Korunden. Published in GZ, 1990. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsRubySapphire
1987

On corundums from Umba, Tanzania

On corundums from Umba, Tanzania. Published in Journal of Gemmology, 1987. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire
1986

Glass-like fillings in rubies and sapphires

Glass-like fillings in rubies and sapphires. Published 1986. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
RubySapphireTreatments
1986

Corindons traités avec obturations vitreuses

Corindons traités avec obturations vitreuses. Published 1986. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
RubySapphireTreatments
1986

Korunde aus dem Umba-Tal, Tansania

Korunde aus dem Umba-Tal, Tansania. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1986. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire

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