The Biaxial Ray Surface

F. E. Tocher
Dept. of Geology and Mineralogy, University of Aberdeen.

Summary: Existing descriptions of the biaxial ray surface are, in general, misleading. A more accurate description, stressing the simplicity of the surface, is proposed and this is supported by numerous sections drawn through or near the singular points.

Mineralogical Magazine; September 1960 v. 32; no. 250; p. 558-566; DOI: 10.1180/minmag.1960.032.250.05
© 1960, The Mineralogical Society
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