Pt. II-The Solubility of Flourides in Glass.

JSGT 1951 V35 T226-T229

The work of J. W. Ryde on the scattering of light by opal glasses offers an easy and hitherto unexploited method of following the process of precipitation in a vitreous medium, where the rate is sufficiently slow for the progress of nucleation and crystal growth to be followed. This method, applied in the present paper, enables an estimate to be made of the amount of crystalline material in an opal glass, and so of the amount of fluorine present in the vitreous phase.

R. J. Callow