Points from Foregoing Letters


    THE ordinary form of quartz with trigonal symmetry changes at 575° to a form with hexagonal symmetry, the change being preceded by a progressive change of physical properties. Sir C. V. Raman and T. M. K. Nedungadi find an explanation for these effects as a result of an examination of the scattering of monochromatic light in quartz at various temperatures up to the transition point.

    Rights and permissions

    Reprints and Permissions

    About this article

    Cite this article

    Points from Foregoing Letters. Nature 145, 152 (1940). https://doi.org/10.1038/145152d0

    Download citation


    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.