Refractive Index of MgF2, Magnesium Fluoride

Magnesium fluoride is an inorganic compound with the formula MgF2. This white crystalline salt is useful because it is transparent over a wide range of wavelengths.

For a typical sample of MgF2 the refractive index and extinction coefficient at 632.8 nm are 1.383 and 0.000. Below are files of complete refractive index and extinction coefficients. If the file is not available for download, you can request our proprietary file by clicking "Request".

  • Tab-delimited data file for unrestricted use
Wavelength (nm)

Refractive Index Reference - Sopra Materials Database

Wikipedia: Magnesium fluoride
Sopra Materials Database
M. J. Dodge (1984) Refractive properties of magnesium fluoride, Applied Optics, Vol. 23, Issue 12 doi:10.1364/AO.23.001980

No guarantee of accuracy - use at your own risk.