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Gold Bulletin

, Volume 9, Issue 4, pp 134–139 | Cite as

The true story of Purple of Cassius

The birth of gold-based glass and enamel colours
  • L. B. Hunt
Open Access
Article

Abstract

For the past 300 years the literature on gold, on glass and on ceramics has ascribed to Andreas Cassius the credit for discovering the purple preparation of colloidal gold and slannous hydroxide that bears his name and that is still in use as the most effective means of producing enamel colours ranging from pink to maroon. But not only was it known and described more than 25 years before its publication by Cassius; it had already been successfully used to produce a beautiful ruby glass.

Keywords

Ruby Potassium Silicate Gold Chloride Glass Factory Gold Powder 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    J. R. Glauber, “Des Teutschlands Wohlfahrt”, Amsterdam, 1656–61, Part IV, pp. 35–36Google Scholar
  2. 2.
    J. Kunckel, “Ars Vitraria Experimentalis”, Frankfurt and Leipzig, 1679, p. 192Google Scholar
  3. 3.
    This was translated into French as “Oeuvres Metallurgiques de M. Jean-Christian Orschall”, Paris, 1760, by the Baron d’Holbach, whose preface gives the story of Orschall being deprived of his office by the intrigues of his enemies.Google Scholar
  4. 4.
    J. C. Orschall, “Sol Sine Veste”, Augsburg, 1684, pp. 18–19Google Scholar
  5. 5.
    J. Kunckel, “Collegium Physico-Chymicum Experimentale, oder Laboratorium Chymicum”, Hamburg, 1716, p. 650Google Scholar
  6. 6.
    J. Kunckel,ibid., p. 382.Google Scholar
  7. 7.
    M. Mields, “Aus der Jugendzeit des Europäischen Porzellans”,Sprechsaal, 1960,93, 391Google Scholar
  8. 8.
    Sir Harry Garner, “The Origins ofFamille Rose”,Trans. Oriental Ceram. Soc., 1967/69,37, 1–16Google Scholar

Copyright information

© World Gold Council 1976

Authors and Affiliations

  • L. B. Hunt
    • 1
  1. 1.Johnson Matthey & Co LimitedLondon

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