Wickenburgite, a double-layer silicate Pb3Al[6][Ca[6]Al[4]Si[4]10O27(H2O)3]·H2O: Crystal chemistry and thermal behaviour
2003 ◽
Vol 218
(8)
◽
Keyword(s):
X Ray
◽
AbstractTo clarify discrepancies in the literature with regard to the water content and crystal structure of wickenburgite, chemical and thermal analyses and IR spectroscopic measurements were made and the structure was redetermined with single-crystal X-ray diffraction data. It was found that the idealised composition of the mineral is PbPbWith regard to crystal structure, that described by Lam et al. is found to be essentially correct, except for an additional H