Crystal chemistry of ferromagnesian silicate spinels: evidence for Mg-Si disorder

R. M. Hazen; R. T. Downs; L. W. Finger; Ko Jaidong Ko

Crystal chemistry of ferromagnesian silicate spinels: evidence for Mg-Si disorder

R. M. Hazen, R. T. Downs, L. W. Finger, Ko Jaidong Ko

Geosciences

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80 Scopus citations

Abstract

Single-crystal X-ray diffraction data have been obtained for synthetic Fe-Mg silicate spinels. The measurements on γ-Mg₂SiO₄ synthesized at 20 GPa and 1400°C, compared with previous data on a specimen synthesized at 22 GPa and 1000°C, provide evidence that approximately 4% of Si_tot enters octahedral coordination in the sample synthesized at higher temperature. Fe-bearing silicate spinels synthesized at lower pressures display no evidence for Fe-Si disorder. -Authors

Original language	English (US)
Pages (from-to)	1320-1323
Number of pages	4
Journal	American Mineralogist
Volume	78
Issue number	11-12
State	Published - 1993

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

Cite this

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title = "Crystal chemistry of ferromagnesian silicate spinels: evidence for Mg-Si disorder",

abstract = "Single-crystal X-ray diffraction data have been obtained for synthetic Fe-Mg silicate spinels. The measurements on γ-Mg2SiO4 synthesized at 20 GPa and 1400°C, compared with previous data on a specimen synthesized at 22 GPa and 1000°C, provide evidence that approximately 4% of Sitot enters octahedral coordination in the sample synthesized at higher temperature. Fe-bearing silicate spinels synthesized at lower pressures display no evidence for Fe-Si disorder. -Authors",

author = "Hazen, {R. M.} and Downs, {R. T.} and Finger, {L. W.} and {Jaidong Ko}, Ko",

year = "1993",

language = "English (US)",

volume = "78",

pages = "1320--1323",

journal = "American Mineralogist",

issn = "0003-004X",

publisher = "Mineralogical Society of America",

number = "11-12",

}

TY - JOUR

T1 - Crystal chemistry of ferromagnesian silicate spinels

T2 - evidence for Mg-Si disorder

AU - Hazen, R. M.

AU - Downs, R. T.

AU - Finger, L. W.

AU - Jaidong Ko, Ko

PY - 1993

Y1 - 1993

N2 - Single-crystal X-ray diffraction data have been obtained for synthetic Fe-Mg silicate spinels. The measurements on γ-Mg2SiO4 synthesized at 20 GPa and 1400°C, compared with previous data on a specimen synthesized at 22 GPa and 1000°C, provide evidence that approximately 4% of Sitot enters octahedral coordination in the sample synthesized at higher temperature. Fe-bearing silicate spinels synthesized at lower pressures display no evidence for Fe-Si disorder. -Authors

AB - Single-crystal X-ray diffraction data have been obtained for synthetic Fe-Mg silicate spinels. The measurements on γ-Mg2SiO4 synthesized at 20 GPa and 1400°C, compared with previous data on a specimen synthesized at 22 GPa and 1000°C, provide evidence that approximately 4% of Sitot enters octahedral coordination in the sample synthesized at higher temperature. Fe-bearing silicate spinels synthesized at lower pressures display no evidence for Fe-Si disorder. -Authors

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UR - http://www.scopus.com/inward/citedby.url?scp=0027807988&partnerID=8YFLogxK

M3 - Article

SN - 0003-004X

VL - 78

SP - 1320

EP - 1323

JO - American Mineralogist

JF - American Mineralogist

IS - 11-12

ER -

Crystal chemistry of ferromagnesian silicate spinels: evidence for Mg-Si disorder

Abstract

ASJC Scopus subject areas

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