Ca2+, PO43- ⇆ Ln3+, SiO44- coupled substitution in the apatitic structure:: stability of the mono-silicated fluor-britholite

被引：30

作者：

Carpéna, J

Boyer, L

Fialin, M

Kiénast, JR

Lacout, JL

机构：

[1] Commissariat Energie Atom, Ctr Cadarache, DESD, SEP, F-13108 St Paul Les Durance, France

[2] ENSC Toulouse, CNRS, F-31000 Toulouse, France

[3] Univ Paris 07, F-75005 Paris, France

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES | 2001年 / 333卷 / 07期

关键词：

apatite; silicate; phosphate; rare-earth elements; fluorine;

D O I：

10.1016/S1251-8050(01)01656-1

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Synthetic crystals of mono-silicated fluor-britholite doped with rare earth elements have been prepared. The stoichiometry of the compound has been determined by means of microprobe analyses. Single crystal Laue diffraction and luminescence measurements reveal the covalent character of the rare-earth channel anion bond, thus explaining the stability of such compounds in the natural environment. (C) 2001 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.

引用

页码：373 / 379

页数：7

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