Note on a Crystal of Tourmaline

W. J. Lewis
Professor of Mineralogy in the University of Cambridge

Mineralogical Magazine; March 1893 v. 10; no. 46; p. 142; DOI: 10.1180/minmag.1893.010.46.05
© 1893, The Mineralogical Society
Mineralogical Society (www.minersoc.org)