R1: Characterization and description of minerals (Joint Session with The Gemmological Society of Japan)

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[R1-14] Origin of pale-blue colour on natural opals

*Hiroki OKUDERA¹, Tetsuyoshi Takeda² (1. Kanazawa Univ. Sci.&Tech., 2. Grad. S. Nat. Sys., Kanazawa Univ.)

Keywords:

opal,UV-Vis AS,Rayleigh scattering,Mie scattering,Photonic bandgap

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