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1987

Grenats – une famille de gemmes multicolores

Grenats – une famille de gemmes multicolores. Published in Journal Suisse d’Horlogerie et de Bijouterie, 1987. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
Other Gemstones
1987

Granate – eine farbenfrohe Edelstein-Familie

Granate – eine farbenfrohe Edelstein-Familie. Published in Schweizer Uhren- und Schmuckjournal, 1987. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
Other Gemstones
1987

Garnets – a colourful gemstone family

Garnets – a colourful gemstone family. Published in Swiss Watch & Jewelry Journal, 1987. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
Other Gemstones
1987

Die Smaragde der Belmont-Mine bei Itabira, Minas Gerais, Brasilien: Vorkommen und Charakteristika

Die Smaragde der Belmont-Mine bei Itabira, Minas Gerais, Brasilien: Vorkommen und Charakteristika. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1987. Author(s): H.A. Haenni, D. Schwarz, M. Fischer

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Authors

  • D. Schwarz
  • H.A. Haenni
  • M. Fischer
Research Articles
EmeraldOrigins
1987

Dégâts occasionnés aux diamants taillés

Dégâts occasionnés aux diamants taillés. Published in journal Suisse des horlogers et des bijoutiers-orfèvres, 1987. Author(s): H.A. Haenni, G. Bosshart

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Authors

  • G. Bosshart
  • H.A. Haenni
Research Articles
Diamond
1987

Damage to cut diamonds

Damage to cut diamond. Published in Journal of Gemmology, 1987. Author(s): H.A. Haenni, G. Bosshart

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Authors

  • G. Bosshart
  • H.A. Haenni
Research Articles
Diamond
1986

Schaeden an geschliffenen Diamanten

Schaeden an geschliffenen Diamanten. Published in Schweizerische Uhrmacher- und Goldschmiede Zeitung, 1986. Author(s): H.A. Haenni, G. Bosshart

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Authors

  • H.A. Haenni
Research Articles
Diamond
1986

Behandelte Rubine mit glasartigen Füllungen

Behandelte Rubine mit glasartigen Füllungen. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1986. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
RubyTreatments
1986

Spectrophotometric measurements of faceted rubies: critical review of an immersion technique

Spectrophotometric measurements of faceted rubies: critical review of an immersion technique. Published in Journal of Gemmology, 1986. Author(s): G. Bosshart, K. Schmetzer

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Authors

  • G. Bosshart
  • K. Schmetzer
Research Articles
GemmologyRuby
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

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