TY - JOUR
T1 - Improved powder X-ray data for cancrinites III
T2 - Davyne
AU - Ballirano, Paolo
AU - Maras, Adriana
AU - Buseck, P R
AU - Yates, Ann M.
N1 - Funding Information:
Thanks are due to Dr. G. C. Parodi for having supplied the sample. The powder XRD data were obtained on equipment purchased through NSF grant DMR-8406823. Financial support was partly from the NSF grant EAR-9219376 and M.U.R.S.T. 40% and 60%.
PY - 1997/6
Y1 - 1997/6
N2 - New powder X-ray diffraction data of davyne, a member of the cancrinite group of minerals, were collected using a rotating anode diffractometer: the hexagonal cell parameters are a = 12.6711(3) Å, c = 5.3278(2) Å, volume 740.82(4) Å3 (space group P63). The strongest lines are: 3.658(100), 4.790(73), 3.272(70), 2.112(48), 2.438(22), 2.663(19), 1.781(19), and 4.147(17). The new data provide quantitative intensities improved precision in rf-spacings and cover an increased 2 θ angular range with respect to PDF 20-379. Measured intensities and a simulated pattern are reported together with crystal-chemical considerations.
AB - New powder X-ray diffraction data of davyne, a member of the cancrinite group of minerals, were collected using a rotating anode diffractometer: the hexagonal cell parameters are a = 12.6711(3) Å, c = 5.3278(2) Å, volume 740.82(4) Å3 (space group P63). The strongest lines are: 3.658(100), 4.790(73), 3.272(70), 2.112(48), 2.438(22), 2.663(19), 1.781(19), and 4.147(17). The new data provide quantitative intensities improved precision in rf-spacings and cover an increased 2 θ angular range with respect to PDF 20-379. Measured intensities and a simulated pattern are reported together with crystal-chemical considerations.
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U2 - 10.1017/S0885715600009520
DO - 10.1017/S0885715600009520
M3 - Article
AN - SCOPUS:0031524012
VL - 12
SP - 99
EP - 102
JO - Powder Diffraction
JF - Powder Diffraction
SN - 0885-7156
IS - 2
ER -