Kalsilite in Venanzite from San Venanzo, Umbria, Italy

F. A. Bannister1, Th. G. Sahama2 and H. B. Whk.3
1Keeper of Minerals in the British Museum.
2Professor of Geochemistry. University of Helsinki, Finland.
3Chemist, Geological Survey of Finland, Helsinki.

Mineralogical Magazine; March 1953 v. 30; no. 220; p. 46-48; DOI: 10.1180/minmag.1953.030.220.05
© 1953, The Mineralogical Society
Mineralogical Society (www.minersoc.org)