Research Library

Untersuchungen an Titanit, einem für Sri Lanka neuen Edelstein

Untersuchungen an Titanit, einem für Sri Lanka neuen Edelstein. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1982.

Author(s): H.A. Haenni

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Caractéristiques des corindons chauffés et traités par diffusion

Caractéristiques des corindons chauffés et traités par diffusion. Published in Journal Suisse des horlogers et bijoutiers-orfèvres, 1982.

Author(s): H.A. Haenni

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Golden yellow tourmaline of gem quality from Kenya

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Golden yellow tourmaline of gem quality from Kenya. Published in Journal of Gemmology, 1981.

Author(s): H.A. Haenni

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Cubic stabilized zirconias

This article contains a short survey on the stability of zirconias and their growth as stable cubic single crystals, followed by physical and crystallographic data on transparent rough and brilliant-cut material. The chemical compositions of yttria-stabilitzed zirconias is verified by means of rarely used formulas.

Author(s): G. Bosshart

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