Gold Bulletin

, Volume 10, Issue 1, pp 10–14

The colour of gold and its alloys

The mechanism of variation in optical properties
  • K. E. Saeger
  • J. Rodies
Open Access

DOI: 10.1007/BF03216519

Cite this article as:
Saeger, K.E. & Rodies, J. Gold Bull (1977) 10: 10. doi:10.1007/BF03216519


The optical properties of metals, and particularly their high reflectivity, are related to the effect on their free electrons of the energy of the incident light, but a satisfactory explanation of the characteristic colours of gold and its alloys and intermetallic phases has become possible only since calculations could be made of energy band structures.

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Copyright information

© World Gold Council 1977

Authors and Affiliations

  • K. E. Saeger
    • 1
  • J. Rodies
    • 2
  1. 1.DODUCO K.G.PforzheimWest Germany
  2. 2.Friedrich Uhde GmbHDortmundWest Germany

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