AM_Gonnardite_5
Formula:
(Si2.685 Al2.315) O12 Na1.462 Ca.474 H.204
Name:
Gonnardite
Unit cell:
12.9202 12.9202 6.695 90.0 90.0 90.0 , V=1117.61
Space group:
I-42D (122)
Lee Y , Hriljac J A , Vogt T , American Mineralogist , 90 (2005) p.247-251, Variable-temperature structural studies of tetranatrolite from Mt. Saint-Hilaire:, Synchrotron X-ray powder diffraction and Rietveld analysis, Sample: T = 300 C, phase I