Inorganic Solid Phases

0.65Ca₂Al₂SiO₇·0.35Ca₂MgSi₂O₇ (Ca₂Mg_0.50AlSi_1.50O₇) Crystal Structure

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General Information

Phase Label(s): Ca₂Mg_0.50AlSi_1.50O₇
Structure Class(es): –
Classification by Properties: –
Mineral Name(s): alumoakermanite
Pearson Symbol: tP24
Space Group: 113
Phase Prototype: Ca₂Mg[Si₂O₇]
Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Nonius (determination of structural parameters), X-rays, Mo Kα (determination of cell and structural parameters), T = 298 K (determination of cell and structural parameters)
Phase Class(es): –
Compound Class(es): silicate
Interpretation Detail(s): complete structure determined; composition dependence studied; temperature dependence studied, least-squares refinement
Sample Detail(s): sample prepared from CaO, Al₂O₃, SiO₂, MgO, single crystal (determination of cell and structural parameters)

Substance Summary

Standard Formula: Ca₂Mg_0.35Al_1.3Si_1.35O₇
Alphabetic Formula: Al_1.3Ca₂Mg_0.35O₇Si_1.35
Published Formula: 0.65Ca₂Al₂SiO₇·0.35Ca₂MgSi₂O₇
Refined Formula: Al_1.30Ca₂Mg_0.35O₇Si_1.35
Wyckoff Sequence: 113,fe³ca
Z Formula Units: 2
Density: ρ = 3.01 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

Anisotropic

Site	U₁₁ [nm²]	U₂₂ [nm²]	U₃₃ [nm²]	U₁₂ [nm²]	U₁₃ [nm²]	U₂₃ [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_1221033

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 0.65Ca2Al2SiO7·0.35Ca2MgSi2O7 (Ca2Mg0.50AlSi1.50O7) Crystal Structure sd_1221033 (Springer-Verlag GmbH, Heidelberg, © 2016)

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