gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1960.032.249.02 X-ray Data on Stokesite Gay P. M.A., Ph.D. Rickson K. O. Dept. of Mineralogy and Petrology, Downing Place, Cambridge 6 1960 32 249 433 435 Copyright © 1960, The Mineralogical Society 1960 Summary

An X-ray examination of the type specimen of stokesite gave a 14·41, b 11·61, c 5·23 Å.; space-group Pnna. The unit cell contains 4[CaSnSi3O11H4] and is derived from Hutchinson's morphological unit by the transformation [010/001/100]. X-ray powder data are given.