Inorganic Solid Phases

X[BO(SiO4)], rt (La0.4Ce0.6[SiO4]BO) Crystal Structure

General Information

  • Phase Label(s): La0.4Ce0.6[SiO4]BO
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): stillwellite-(Ce)
  • Pearson Symbol: hP24
  • Space Group: 144
  • Phase Prototype: Ce[SiO4]BO
  • Measurement Detail(s): automatic diffractometer; 25 (determination of cell parameters), automatic diffractometer; Nicolet R3m (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): orthosilicate, borate
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 1003 reflections; F > 5σ(F), R = 0.027; wR = 0.033
  • Sample Detail(s): stillwellite sample from Italy, Latium, Vico volcanic complex, electron microprobe analysis; 22.06 wt.% SiO2, 0.22 UO2, 5.41 wt.% ThO2, 1.82 wt.% Pr2O3, 19.12 wt.% La2O3, 5.36 wt.% Nd2O3, 30.82 wt.% Ce2O3, 0.34 wt.% Sm2O3, 0.28 wt.% Y2O3, 0.34 wt.% CaO, 13.46 wt.% B2O3, single crystal (determination of cell parameters), single crystal, 0.26 mm diameter (determination of structural parameters)

Substance Summary

  • Standard Formula: La0.5Ce0.5[SiO4]BO
  • Alphabetic Formula: BCe0.5La0.5O[SiO4]
  • Published Formula: X[BO(SiO4)], rt
  • Refined Formula: BCe0.50La0.50O5Si
  • Wyckoff Sequence: 144,a9
  • Z Formula Units: 3
  • Density: ρ = 4.74 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
U [nm2]
Type
Computed
Beq [nm2]

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1616443

  • 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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