Nanometric modulation in apatite

C. Ferraris; T. J. White; J. Plévert; R. Wegner

doi:10.1007/s00269-005-0023-4

Nanometric modulation in apatite

C. Ferraris^*, T. J. White, J. Plévert, R. Wegner

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

Brazilian gem-grade apatite (B-Ap) consists of contiguous fluorine-enriched (host-Ap) domains (∼400 nm), interspersed by isolated domains (∼200 nm) of a chlorine-enriched (guest-Ap) apatite in a long period compositional modulation. Within each of these domains a third modulation differentiating Si- and S-rich nanocrystals (5-10 nm) of ellestadite (El-Ap), a monoclinic apatite variety, developed possibly during a short term high temperature event. These unexpected miscibility gaps may be useful geothermometric tools, and could prove decisive for enhancing the properties of apatites used as heterogeneous catalysts and fuel-cell electrolytes.

Original language	English
Pages (from-to)	485-492
Number of pages	8
Journal	Physics and Chemistry of Minerals
Volume	32
Issue number	7
DOIs	https://doi.org/10.1007/s00269-005-0023-4
Publication status	Published - Nov 2005
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Geochemistry and Petrology

Keywords

Apatite
Exsolution
HRTEM
Miscibility gap

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10.1007/s00269-005-0023-4

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abstract = "Brazilian gem-grade apatite (B-Ap) consists of contiguous fluorine-enriched (host-Ap) domains (∼400 nm), interspersed by isolated domains (∼200 nm) of a chlorine-enriched (guest-Ap) apatite in a long period compositional modulation. Within each of these domains a third modulation differentiating Si- and S-rich nanocrystals (5-10 nm) of ellestadite (El-Ap), a monoclinic apatite variety, developed possibly during a short term high temperature event. These unexpected miscibility gaps may be useful geothermometric tools, and could prove decisive for enhancing the properties of apatites used as heterogeneous catalysts and fuel-cell electrolytes.",

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T1 - Nanometric modulation in apatite

AU - Ferraris, C.

AU - White, T. J.

AU - Plévert, J.

AU - Wegner, R.

PY - 2005/11

Y1 - 2005/11

N2 - Brazilian gem-grade apatite (B-Ap) consists of contiguous fluorine-enriched (host-Ap) domains (∼400 nm), interspersed by isolated domains (∼200 nm) of a chlorine-enriched (guest-Ap) apatite in a long period compositional modulation. Within each of these domains a third modulation differentiating Si- and S-rich nanocrystals (5-10 nm) of ellestadite (El-Ap), a monoclinic apatite variety, developed possibly during a short term high temperature event. These unexpected miscibility gaps may be useful geothermometric tools, and could prove decisive for enhancing the properties of apatites used as heterogeneous catalysts and fuel-cell electrolytes.

AB - Brazilian gem-grade apatite (B-Ap) consists of contiguous fluorine-enriched (host-Ap) domains (∼400 nm), interspersed by isolated domains (∼200 nm) of a chlorine-enriched (guest-Ap) apatite in a long period compositional modulation. Within each of these domains a third modulation differentiating Si- and S-rich nanocrystals (5-10 nm) of ellestadite (El-Ap), a monoclinic apatite variety, developed possibly during a short term high temperature event. These unexpected miscibility gaps may be useful geothermometric tools, and could prove decisive for enhancing the properties of apatites used as heterogeneous catalysts and fuel-cell electrolytes.

KW - Apatite

KW - Exsolution

KW - HRTEM

KW - Miscibility gap

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EP - 492

JO - Physics and Chemistry of Minerals

JF - Physics and Chemistry of Minerals

IS - 7

ER -

Nanometric modulation in apatite

Abstract

ASJC Scopus Subject Areas

Keywords

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