Mineralogical and Chemical Properties of Shidare Kibushi Clay

In order to elucidate the reason for low whiteness of the potteries from so-called Shidare-Kibushi clays, the samples collected at Mifune Mine, Aichi prefecture, were analyzed for mineralogical and chemical characteristics, and the results were compared with those obtained for the samples of Kibushi...

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Bibliographic Details
Published inJournal of the Clay Science Society of Japan (in Japanese) Vol. 28; no. 1; pp. 9 - 17
Main Authors SHIBASAKI, Yasuo, MAEDA, Takehisa, TOMURA, Shinji, MIZUTA, Hiroyuki, AKATSUKA, Yoshihiko, OSAWA, Tadashi, MACHIMURA, Hitoshi
Format Journal Article
LanguageEnglish
Published The Clay Science Society of Japan 10.04.1988
Subjects
Ceramics
Fe2O3
Iron-rich mica mineral
Kibushi clay
TiO2
Whiteness
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Summary:In order to elucidate the reason for low whiteness of the potteries from so-called Shidare-Kibushi clays, the samples collected at Mifune Mine, Aichi prefecture, were analyzed for mineralogical and chemical characteristics, and the results were compared with those obtained for the samples of Kibushi and Gairome clays from Motoyama Mine in Seto City. The samples consisted of quartz, kaolinite, small quantities of feldspars, smectite, and greenish platy particle with 10 Å d-spacing. The greenish platy particles were examined by means of TEM and EPMA. They were presumed to be iron-rich mica mineral partly kaolinized by weathering. The sample clays contained large amounts of Fe2O3 and TiO2 in comparison with the other clays used for comparison. The reason for the low whiteness of Shidare-Kibushi clays was ascribed to the presence of relatively high contents of titanium and iron in the weathered iron-rich mica mineral contained.
ISSN:0470-6455
2186-3563
DOI:10.11362/jcssjnendokagaku1961.28.9