Chemical composition of bakerite from Fuka, Okayama Prefecture, Japan

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Author(s)

    • KUSACHI Isao
    • Department of Earth Sciences, Faculty of Education, Okayama University
    • HENMI Chiyoko
    • Department of Earth Sciences, Faculty of Science, Okayama University
    • KOBAYASHI Shoichi
    • Department of Earth Sciences, Faculty of Science, Okayama University of Science

Abstract

Bakerite has been found as a vein-forming mineral in crystalline limestone near gehlenite-spurrite skarns at Fuka, Okayama Prefecture. The wet chemical analysis, EPMA, and IMA of the mineral yield an empirical formula Ca<SUB>8.036</SUB>B<SUB>9.963</SUB>Si<SUB>6.033</SUB>O<SUB>30.092</SUB>(OH)<SUB>9.908</SUB> on the basis of O=40. The present data supports the chemical formula calculated by Palache <I>et al.</I> (1951) rather than that for natural specimens given by Giles (1903); Kramer and Allen (1956); Baysal and Dilekoz (1975). The DTA and TG curves, and IR spectrum are also measured. The optical and X-ray diffraction properties agree with previous data.<BR>Bakerite from Fuka may be primarily formed under a low temperature hydrothermal condition.

Journal

  • Mineralogical Journal

    Mineralogical Journal 17(3), 111-117, 1994-07-01

    Japan Association of Mineralogical Sciences

References:  8

Codes

  • NII Article ID (NAID)
    10008770992
  • NII NACSIS-CAT ID (NCID)
    AA00739590
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    05442540
  • Data Source
    CJP  J-STAGE 
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