Abstract
A SPECIMEN of the mineral lamprophyllite (from Kola, the U.S.S.R.) at present being investigated is monoclinic, space group C2/m, with unit cell dimensions: a = 19.76 Å, b = 7.06 Å, c = 5.40 Å, β = 96.5°. The unit cell formula is: 4 × (Ba,Sr,K)Na(Ti,Fe)TiSi2(O,OH,F)9.
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Simonov, V. I., and Belov, N. V., Kristallografiya, 4, 163 (1959).
Shibaeva, R. P., Simonov, V. I., and Belov, N. V., Kristallografiya, 8, 506 (1963).
Simonov, V. I., and Belov, N. V., Dokl. Akad. Nauk. S.S.S.R., 149, 1416 (1963).
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WOODROW, P. Crystal Structure of Lamprophyllite. Nature 204, 375 (1964). https://doi.org/10.1038/204375a0
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DOI: https://doi.org/10.1038/204375a0
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