Powder X-ray characterisation of natrolite, Na2Al2Si3O10.2H2O
- 1 September 1995
- journal article
- research article
- Published by Cambridge University Press (CUP) in Powder Diffraction
- Vol. 10 (4) , 243-247
- https://doi.org/10.1017/s0885715600014901
Abstract
High-quality powder X-ray diffraction data for a well-characterised natural sample of natrolite (Na2Al2Si3O10.2H2O, space group Fdd2, Z = 8) are presented. Refined cell parameters were a = 18.2984±0.0007 Å, b = 18.6502±0.0008 Å, and c = 6.5589±0.0003 Å. The sample was characterised using thermogravimetric techniques (to determine water content), EPMA and ICP-MS (to determine composition). Available data suggest that the crystal matches the expected stoichiometry of natrolite. Our powder data show close similarity with the proposed structure of natrolite using the Rietveld method, giving R values of 8.54%, and suggest that preferred orientation is not present in the sample.Keywords
This publication has 3 references indexed in Scilit:
- An Introduction to the Rock-Forming MineralsPublished by Mineralogical Society ,2013
- A profile refinement method for nuclear and magnetic structuresJournal of Applied Crystallography, 1969
- The crystal structure of natrolite*Zeitschrift für Kristallographie, 1960