Inorganic Solid Phases

(A1)2(A2)2(M1-M3)6[T4(O,OH)4/(SiO4)2/Si3O10/(OH,O)6]; A4M6T6O22(OH)6 (CaMg0.9Mn3.4Fe0.3Al4.4Si3.2[SiO4]2As0.8O14[OH]6) Crystal Structure

General Information

  • Phase Label(s): CaMg0.9Mn3.4Fe0.3Al4.4Si3.2[SiO4]2As0.8O14[OH]6
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): ardennite-(As)
  • Pearson Symbol: oP88
  • Space Group: 59
  • Phase Prototype: (Ca0.1Mn0.9)2(Mg0.5Fe0.2Al0.3)2Mn2Al4[(V0.1As0.9)O4]Si3[SiO4]2O10[OH]6
  • Measurement Detail(s): automatic diffractometer; 13 (determination of cell parameters), automatic diffractometer; Ital Structures (determination of structural parameters), X-rays, Mo Kα; λ = 0.071069 nm (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): hydroxide, orthosilicate, silicate
  • Interpretation Detail(s): positions of non-H atoms determined, full-matrix least-squares refinement; 776 reflections; I > 3σ(I), R = 0.065; wR = 0.052
  • Sample Detail(s): ardennite sample from Italy, Valtournanche, Lago di Cignana, single crystal (determination of cell parameters), single crystal, 0.05×0.1×0.15 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: Ca0.8Mg1.4Mn3Fe0.2Al4.6Si3.2[SiO4]2As0.8O14[OH]6
  • Alphabetic Formula: Al4.6As0.8Ca0.8Fe0.2Mg1.4Mn3O14[OH]6Si3.2[SiO4]2
  • Published Formula: (A1)2(A2)2(M1-M3)6[T4(O,OH)4/(SiO4)2/Si3O10/(OH,O)6]; A4M6T6O22(OH)6
  • Refined Formula: Al4.60As0.80Ca0.80Fe0.20H6Mg1.40Mn3O28Si5.20
  • Wyckoff Sequence: 59,g2f3e12dcba
  • Z Formula Units: 2
  • Density: ρ = 3.60 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]

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1625761

  • 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

    Citation copied