On Bultfonteinite, a New Fluorine-Bearing Hydrous Calcium Silicate from South Africa

John Parry1, Alpheus F. Williams and F. E. Wright
chemical study, De Beers Consolidated Mines, Kimberley, Union of South Africa
crystallographical and optical study, Geophysical Laboratory, Carnegie Institution of Washington, D.C.
1Mr. John Parry, Chief Chemist of the De Beers Consolidated Mines at Kimberley, died on October 6, 1931.

Mineralogical Magazine; September 1932 v. 23; no. 138; p. 145-162; DOI: 10.1180/minmag.1932.023.138.01
© 1932, The Mineralogical Society
Mineralogical Society (www.minersoc.org)