Inorganic Solid Phases

OH-rich norbergite (F-Fe-H-Mg-O-Si) (Mg2.96Fe0.04[SiO4][OH]0.28F1.72) Crystal Structure

General Information

  • Phase Label(s): Mg2.96Fe0.04[SiO4][OH]0.28F1.72
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): norbergite
  • Pearson Symbol: oP40
  • Space Group: 62
  • Phase Prototype: Mg3[SiO4][OH]2
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Philips PW1100 (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, orthosilicate, fluoride
  • Interpretation Detail(s): complete structure determined, full-matrix least-squares refinement; 1212 reflections, R = 0.0142; wR = 0.0338
  • Sample Detail(s): norbergite sample from Spain, Betic Cordilleras, Alpujarride complex, Huerta del Vinagre, electron microprobe analysis; composition determined as Mg2.991Ti0.002Fe0.019Si0.985B0.014O4.009[OH]0.454F1.537, single crystal (determination of cell parameters), single crystal, 0.29×0.36×0.39 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Mg2.96Fe0.04[SiO4][OH]0.28F1.72
  • Alphabetic Formula: F1.72Fe0.04Mg2.96[OH]0.28[SiO4]
  • Published Formula: OH-rich norbergite (F-Fe-H-Mg-O-Si)
  • Refined Formula: F1.72Fe0.04H0.46Mg2.96O4.28Si
  • Wyckoff Sequence: 62,d3c4
  • Z Formula Units: 4
  • Density: ρ = 3.18 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_1121691

  • 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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