Inorganic Solid Phases

Si_12.00O₃₀(Al_0.09Fe³⁺_0.05Mg_7.58)(OH)₄(OH₂)₄ (Mg_3.91Fe_0.02Al_0.04Si₆O₁₅[OH]₂[H₂O]₅, T = 498 K) Crystal Structure

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General Information

Phase Label(s): Mg_3.91Fe_0.02Al_0.04Si₆O₁₅[OH]₂[H₂O]₅
Structure Class(es): –
Classification by Properties: –
Mineral Name(s): sepiolite
Pearson Symbol: oP132
Space Group: 52
Phase Prototype: Mg₄Si₆O₁₅[OH]₂[H₂O]₆
Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; France, Grenoble, European Synchrotron Radiation Facility ESRF, SpLine, BM25A (determination of structural parameters), X-rays, synchrotron; λ = 0.08263 nm (determination of cell and structural parameters), T = 498 K (determination of cell and structural parameters)
Phase Class(es): –
Compound Class(es): hydroxide, silicate, hydrate
Interpretation Detail(s): positions of non-H atoms determined, Rietveld refinement; 57 variables, R_P = 0.1030; wR_P = 0.1050; R_B = 0.0573
Sample Detail(s): sepiolite sample from U.S.A. New Mexico, Grant County, analytical electron microscopy; (Si_12.00(9))(Al_0.09(7)Fe³⁺_0.05(6)Mg_7.58(22))Ca_0.07(6)K_0.02(2)Na_0.15(15)O₃₀(OH)₄[H₂O]_x, powder (determination of cell and structural parameters)

Substance Summary

Standard Formula: Mg_3.91Fe_0.02Al_0.04Si₆O₁₅[OH]₂[H₂O]₂
Alphabetic Formula: Al_0.04Fe_0.02[H₂O]₂Mg_3.91O₁₅[OH]₂Si₆
Published Formula: Si_12.00O₃₀(Al_0.09Fe³⁺_0.05Mg_7.58)(OH)₄(OH₂)₄
Refined Formula: H₆Mg_3.86O₁₉Si₆
Wyckoff Sequence: 52,e¹²dc⁴
Z Formula Units: 4
Density: ρ = 2.01 Mg·m⁻³

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Crystallographic Data

Cell Parameters

	Published Data	Standardized Data
	Published Data	Unit Cell	Niggli-Reduced Cell
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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.
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Published

Site	Element	Wyckoff Symbol	Symmetry	X	Y	Z	Occupation
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Displacement Parameters

Isotropic

Site	Published U [nm²]	Type	Computed B_eq [nm²]
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Experimental Details

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Reference

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3D Interactive Structure

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About this content

Database name

PAULING FILE Multinaries Edition – 2012

Dataset ID

sd_1226165

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.

Project Coordinator: Shuichi Iwata

Section-Editor: Karin Cenzual (Crystal Structures)

Cite this content

Pierre Villars (Chief Editor), PAULING FILE in: Inorganic Solid Phases, SpringerMaterials (online database), Springer, Heidelberg (ed.) SpringerMaterials Si12.00O30(Al0.09Fe3+0.05Mg7.58)(OH)4(OH2)4 (Mg3.91Fe0.02Al0.04Si6O15[OH]2[H2O]5, T = 498 K) Crystal Structure sd_1226165 (Springer-Verlag GmbH, Heidelberg, © 2016)

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