Differences Among Low Ceylon Zircons

E. R. Vance and B. W. Anderson
Chemistry Department, University College, London
The Laboratory of the London Chamber of Commerce, Hatton Garden, London

Summary: Low Ceylon zircons showing an optical absorption band at 5200 Å appear to have suffered more radiation damage than other low Ceylon zircons. Very heavy fission-fragment irradiation failed to lower the density of each of two low Ceylon zircons significantly, although the specimens were rendered completely amorphous. Further fission-fragment irradiation experiments indicated that low Ceylon zircons showing a previously reported anomalous absorption spectrum have been heated late in their geological histories.

Mineralogical Magazine; June 1972 v. 38; no. 298; p. 721-724; DOI: 10.1180/minmag.1972.038.298.08
© 1972, The Mineralogical Society
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