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EnglishNew 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. © 1997 International Centre for Diffraction Data.
http://hdl.handle.net/11573/38766| Titolo: | Improved powder X-ray data for cancrinites III: Davyne |
| Autori interni: | MARAS, Adriana BALLIRANO, Paolo |
| Data di pubblicazione: | 1997 |
| Rivista: | POWDER DIFFRACTION |
| Abstract: | 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. © 1997 International Centre for Diffraction Data. |
| Handle: | http://hdl.handle.net/11573/38766 |
| Appare nelle tipologie: | 01.a Pubblicazione su Rivista |
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