Crystal structures of alunite family minerals: beaverite, corkite, alunite, natroalunite, jarosite, svanbergite, and woodhouseite

被引：28

作者：

Sato, Eriko ^{[1
]}

Nakai, Izumi ^{[1
]}

Miyawaki, Ritsuro ^{[2
]}

Matsubara, Satoshi ^{[2
]}

机构：

[1] Tokyo Univ Sci, Dept Appl Chem, Tokyo 1628601, Japan

[2] Natl Museum Nat & Sci, Dept Geol & Paleontol, Shinjuku Ku, Tokyo 1690073, Japan

来源：

NEUES JAHRBUCH FUR MINERALOGIE-ABHANDLUNGEN | 2009年 / 185卷 / 03期

关键词：

alunite group; beaverite; corkite; jarosite; natroalunite; svanbergite; woodhouseite; single crystal; refinement; crystal chemistry; SOLID-SOLUTION;

D O I：

10.1127/0077-7757/2009/0128

中图分类号：

P57 [矿物学];

学科分类号：

070901 ;

摘要：

The crystal structures have been solved and/or refined for minerals of the alunite and beudantite groups having the general formula AM(3)(XO4)(2)(OH)(6): that is, Pb(Fe2Cu)(SO4)(2)(OH)(6) [beaverite], PbFe3(SO4)(PO4)(OH)(6) [corkite], KAl3(SO4)(2)(OH)(6) [alunite], NaAl3(SO4)(2)(OH)(6) [natroalunite], KFe3(SO4)(2)(OH)(6) [jarosite], SrAl3(SO4)(PO4)(OH)(6) [svanbergite] and CaAl3(SO4)(PO4) (OH)(6) [woodhouseite]. The structure analyses revealed that the ionic radius Of the M site cation affected the a axis length whereas those of the A and X site ions influenced the c axis length. Cu-bearing minerals, osarizawaite and beaverite, showed the Jahn-Teller distortion in the Cu2+ octahedra. The space group of corkite was found to be the centric R (3) over barm rather than the acentric R3m space group reported previously.

引用

页码：313 / 322

页数：10

共 25 条

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