Origin of iridescence in garnet: An optical interference study
Article
Received:
- 71 Downloads
- 6 Citations
Abstract
The optical interference phenomenon of an iridescent grandite garnet was examined by using white light and laser light on the analogy of the X-ray diffraction method. A kinematical interpretation was also made for the observed angle and intensity of interference light. The regularly stratified layers which cause iridescence are deduced to be periodic twins oriented parallel to the growth layers in each sector with a periodicity of about 1,000 Å.
Keywords
Mineral Resource Material Processing White Light Laser Light Growth Layer
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.
Preview
Unable to display preview. Download preview PDF.
References
- Ingerson E, Barksdale JD (1943) Iridescent garnet from the Adelaide mining district, Nevada. Am Mineral 28:303–312Google Scholar
- Isogami M (1976) Morphology and optical anomaly of silicate garnet. PhD Thesis, Univ TōhokuGoogle Scholar
- Kitamura K, Komatsu H (1978) Optical anisotropy associated with growth strain of yttrium garnet, Y3(Al, Fe)5O12. Krist Tech 13:811–816Google Scholar
- Sanders JV (1968) Diffraction of light by opal. Acta Crystallogr A24:427–434Google Scholar
- Takeuchi Y, Haga N (1976) Optical anomaly and structure of silicate garnets. Proc Jpn Acad 52:228–231Google Scholar
- Wada N, Hirowatari, F, Takano Y (1978) Optical properties, twin point groups and chemical compositions of anisotropic garnets. J Mineral Soc Jpn 13:380–398Google Scholar
- Winchell AN, Winchell H (1964) Elements of optical mineralogy, II. John Wiley and Sons, New York, pp 483–494Google Scholar
Copyright information
© Springer-Verlag 1982