A Graphic Method for the Comparison of Minerals with Four Variable Components Forming Two Isomorphous Pairs1

A Graphic Method for the Comparison of Minerals with Four Variable Components Forming Two Isomorphous Pairs¹

Edward S. Simpson

Mineralogist and Chemist, Geological Survey of Western Australia

¹Published by permission of the Government Geologist of Western Australia.

Mineralogical Magazine; December 1920 v. 19; no. 91; p. 99-106; DOI: 10.1180/minmag.1920.019.91.03
© 1920, The Mineralogical Society
Mineralogical Society (www.minersoc.org)