K1.350.65Na6[Al8Si8O32] (KNa3Al4[SiO4]4 nep) Crystal Structure
General Information
- Phase Label(s): KNa3Al4[SiO4]4 nep
- Structure Class(es): –
- Classification by Properties: –
- Mineral Name(s): nepheline
- Pearson Symbol: hP60
- Space Group: 173
- Phase Prototype: K0.9(Na0.97Ca0.03)3Al4[SiO4]4
- Measurement Detail(s): automatic diffractometer; 42 (determination of cell parameters), automatic diffractometer; Bruker AXS P4 (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters), T = 297 K (determination of cell and structural parameters)
- Phase Class(es): –
- Compound Class(es): orthosilicate
- Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement on F2; 91 variables; 1024 reflections; I > 2σ(I), R = 0.0410; wR = 0.0898
- Sample Detail(s): nepheline sample from Canada, Ontario, Bancroft, York River, Egan Chute, electron microprobe analysis; (K1.320.68)(Na6.05Ca0.22)[Al7.77Si8.21O32], single crystal (determination of cell parameters), single crystal, 0.15×0.15×0.15 mm3 (determination of structural parameters)
Substance Summary
- Standard Formula: KNa3Al4[SiO4]4
- Alphabetic Formula: Al4KNa3[SiO4]4
- Published Formula: K1.350.65Na6[Al8Si8O32]
- Refined Formula: Al4K0.68Na3O16Si4
- Wyckoff Sequence: 173,c9b2a
- Z Formula Units: 2
- Density: ρ = 2.69 Mg·m−3
Crystallographic Data
Cell Parameters
Atom Coordinates
Standardized
Published
Displacement Parameters
Isotropic
Anisotropic
Experimental Details
Reference
3D Interactive Structure
About this content
PAULING FILE Multinaries Edition – 2012
sd_1818925
©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016
Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland
SpringerMaterials Release 2016.
Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS
All Rights Reserved. Version 2016.10.
Project Coordinator: Shuichi Iwata
Section-Editor: Karin Cenzual (Crystal Structures)
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