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REFERENCES: |
    H. H. Li.
    Refractive index of alkaline earth halides and its wavelength and temperature derivatives.
    <a href="https://doi.org/10.1063/1.555616"><i>J. Phys. Chem. Ref. Data</i> <b>9</b>, 161-289 (1980)</a> and references therein.<br>
    * Sellmeier formula is derived by critical analysis of experimental data from several sources.
COMMENTS: |
    293 K (20 °C).
DATA:
  - type: formula 1
    wavelength_range: 0.15 12.0
    coefficients: 0.33973 0.69913 0.09374 0.11994 21.18 4.35181 38.46