Neutron powder diffraction study of hydrogarnet to 9.0 GPa

The crystal structure of synthetic, deuterated katoite [Ca3Al2(O4D4)3] has been refined at 0.0001, 0.78, 3.6, 6.1, 7.9 and 9.0 GPa using the opposed-anvil Paris-Edinburgh cell and the POLARIS powder diffractometer at the UK pulsed spallation source, ISIS. This study represents the first neutron diff...

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Bibliographic Details
Published inThe American mineralogist Vol. 81; no. 9-10; pp. 1097 - 1104
Main Authors Lager, George A, Von Dreele, Robert B
Format Journal Article
LanguageEnglish
Published Washington Mineralogical Society of America 01.10.1996
Walter de Gruyter GmbH
Subjects
crystal structure
Crystallography
Crystals
garnet group
hydrogarnet
Mineralogy
Minerals
nesosilicates
neutron diffraction data
orthosilicates
P-T conditions
phase equilibria
silicates
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Summary:The crystal structure of synthetic, deuterated katoite [Ca3Al2(O4D4)3] has been refined at 0.0001, 0.78, 3.6, 6.1, 7.9 and 9.0 GPa using the opposed-anvil Paris-Edinburgh cell and the POLARIS powder diffractometer at the UK pulsed spallation source, ISIS. This study represents the first neutron diffraction refinement of a moderately complex mineral structure (V ∼ 2000 Å3, Z = 8) at P >><$I> ∼ 3 GPa.
ISSN:0003-004X
1945-3027
DOI:10.2138/am-1996-9-1006