Tektites and Silica-Glass

L. J. Spencer

Formerly Keeper of Minerals in the British Museum

Mineralogical Magazine; December 1939 v. 25; no. 167; p. 425-440; DOI: 10.1180/minmag.1939.025.167.01
© 1939, The Mineralogical Society
Mineralogical Society (www.minersoc.org)