Inorganic Solid Phases

Pb2+-feldsparFAU, Si/Al= 1.34; Pb0.88Al2Si2O8 (Al2PbSi2O8 ht) Crystal Structure

General Information

  • Phase Label(s): Al2PbSi2O8 ht
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s):
  • Pearson Symbol: mS56
  • Space Group: 12
  • Phase Prototype: Na(Al0.25Si0.75)4O8
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Philips PW1710 (determination of structural parameters), X-rays, Cu Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): silicate
  • Interpretation Detail(s): complete structure determined, Rietveld refinement, RP = 0.186; wRP = 0.186; RB = 0.0459
  • Sample Detail(s): sample prepared from sodium form of FAU (Si/Al= 1.34), Pb[NO3]2, atomic absorption spectroscopy, energy-dispersive X-ray analysis; 38.10 wt.% SiO2, 27.85 wt.% Al2O3, 34.05 wt.% PbO;17.80 % Si, 12.95 % Al, 31.9 % Pb, powder (determination of cell and structural parameters)

Substance Summary

  • Standard Formula: Al1.71Pb0.85Si2.29O8
  • Alphabetic Formula: Al1.71O8Pb0.85Si2.29
  • Published Formula: Pb2+-feldsparFAU, Si/Al= 1.34; Pb0.88Al2Si2O8
  • Refined Formula: Al1.71O8Pb0.90Si2.29
  • Wyckoff Sequence: 12,j6ig
  • Z Formula Units: 4
  • Density: ρ = 3.86 Mg·m−3

Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Displacement Parameters

Isotropic

Site
Published
B [nm2]
Type
Computed
Beq [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1644477

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    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)

  • Cite this content

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