Observations on the Colouring of Pink and Green Zoned Tourmaline

J. E. S. Bradley and Olive Bradley

Geology and Physics Departments, King’s College, University of London.

Mineralogical Magazine; March 1953 v. 30; no. 220; p. 26-38; DOI: 10.1180/minmag.1953.030.220.03
© 1953, The Mineralogical Society
Mineralogical Society (www.minersoc.org)