Zelek S. Herman, Robert F. Kirchner, et al.
Inorganic Chemistry
Paper
Lead feldspar
Abstract
Lead feldspar, PbAl2Si2O8. and solid solutions of the system PbAl2Si2O8—KAlSi3O8 have been synthesized. Lattice parameters of PbAl2Si2O8 are: a = 8.415 ± 0.005, b = 13.063 4; 0.006, c = 7.162 ± 0.004 Å, ß = 115°8′ ± 2′. Possible space groups are C2/cm, C2 and Cm. For compounds of feldspar type a linear relationship between the lattice constant a and the corresponding cation radii was found. The lead feldspar fits well into this relation. © 1971, Walter de Gruyter. All rights reserved.
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