Philipsburgite from the Yamato mine, Yamaguchi Prefecture, Japan

Yohei Sfflrose, Seiichiro Uehara

研究成果: Contribution to journalLetter査読

5 被引用数 (Scopus)

抄録

Philipstmrgite, (Cu,Zn)5Zn(AsO4,PO4)2(OH)6-H2O, an As analogue of kipushite, was discovered in the Yamato mine, Yamaguchi Prefecture, Japan. Philipsburgite occurs in the form of spherical aggregates, 0.5 mm in diameter, with bright green in color. It is associated with malachite and cornwallite in cavities of the oxidized rocks, which consist of quartz and goethite. Spherical philipsburgite consists of platy crystals, 100 μm in length and 1 um in thickness, with sharp termination. The empirical formula is (Cu4.91,Zn0.09)Σ5.00Zn1.00(AsO4)163(PO4)0.37] Σ2.00(OH)61.60H20 on the basis of O = 11 in the anhydrous part per formula unit and the water content was measured by thermogravimetric analysis. The composition is closest to the As end member thus far reported. The unit cell parameters from the X-ray diffraction data are a = 12.359(8), b = 9.247(7), c = 10.734(5) Å, β = 97.22(5)° and V= 1216.9(9) Å3.

本文言語英語
ページ(範囲)153-157
ページ数5
ジャーナルJournal of Mineralogical and Petrological Sciences
106
3
DOI
出版ステータス出版済み - 6 2011

All Science Journal Classification (ASJC) codes

  • 地球物理学
  • 地質学

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