Study of Zn-bearing beaverite Pd(Fe2Zn)(SO4)2(OH)6 obtained from Mikawa mine, Niigata Prefecture, Japan

被引：10

作者：

Sato, Eriko ^{[1
]}

Nakai, Izumi ^{[1
]}

Terada, Yasuko ^{[2
]}

Tsutsumi, Yukiyasu ^{[3
]}

Yokoyama, Kazumi ^{[3
]}

Miyawaki, Ritsuro ^{[3
]}

Matsubara, Satoshi ^{[3
]}

机构：

[1] Tokyo Univ Sci, Inst Sci, Tokyo 1620826, Japan

[2] JASRI SPring 8, Sayo, Hyogo 6795198, Japan

[3] Natl Museum Nat & Sci, Dept Geol, Tokyo 1690073, Japan

来源：

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES | 2008年 / 103卷 / 02期

关键词：

alunite group; beaverite; Rietveld analysis; zinc;

D O I：

10.2465/jmps.071021

中图分类号：

P57 [矿物学];

学科分类号：

070901 ;

摘要：

Zn-bearing beaverite Occurs as a secondary mineral in an oxidized zone of a quartz vein in the hydrotherrnal Cu-Zn-Pb ore deposit of the Mikawa mine, Niigata Prefecture, Japan. The Zn-bearing beaverite is dark brown in color with streaks and the associated minerals are quartz, galena, sphalerite, pyrite, anglesite, beaverite, orthoclase, and osarizawaite. The empirical formula of the mineral based on EPMA is Pb-0.95(Fej(1.88)Al(0.10)) (Sigma 1.98)(Zn0.83Cu0.30)(Sigma 1.13)(SO4)(2)[O-0.38(OH)(5.36)](Sigma 5.74) for S = 2, which leads to the ideal formula Pb(Fe2Zn)(SO4)(2)(OH)(6). The crystal Structure is refined by Rietveld analysis in the space group R (3) over barm. Using powder XRD data obtained by the combined use of a Gandolfi camera and monochromatic synchrotron radiation, the following values are obtained: a = 7.3028(2), c = 17.0517 (4) angstrom, V = 787.56(4) angstrom(3), and D-calc = 4.25 g/cm(3).

引用

页码：141 / 144

页数：4

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[6]

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