An Experimental Study of SiO2 Solubility in Hausmannite

Kikuchi, Takeshi; Sato, Hiroaki; Miura, Hiroyuki

An Experimental Study of SiO2 Solubility in Hausmannite

Kikuchi, Takeshi; Sato, Hiroaki; Miura, Hiroyuki

北海道大学理学部紀要, 1994, 23(3), 321-328

Permalink : https://hdl.handle.net/2115/36786

このアイテムのアクセス数:2,026件（2026-08-18 17:21 集計）

閲覧可能ファイル

ファイル	フォーマット	サイズ	閲覧回数	説明
23-3_p321-328	pdf	2.69 MB	1,667

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権	open access
URI	https://hdl.handle.net/2115/36786
タイトル	An Experimental Study of SiO2 Solubility in Hausmannite
著者	Kikuchi, Takeshi ; Sato, Hiroaki ; Miura, Hiroyuki
著者名 Kikuchi, Takeshi
著者名 Sato, Hiroaki
e-Rad_Researcher 70157436 著者名 Miura, Hiroyuki
言語	英語
発行日	1994-03
出版者	北海道大学
出版者	Hokkaido University
収録物名	北海道大学理学部紀要
収録物名	Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy
巻(号)	23(3)
ページ	321-328
抄録	Solid solubility of SiO2 component in hausmannite has been experimentally determined. The solid solubility of hausmannite coexisting with rhodonite in air at 1200℃ determined by microprobe analyses is the atomic ratio Si/(Mn+Si) of 0.015(2). Reaction between hausmannite and quartz at 900℃ under hematite-magnetite buffer was not attained in equilibrium. Metastable Mn3O4-SiO2 solid solutions have been synthesized in air at 60℃ by a coprecipitation method. The atomic ratio Si/(Mn+Si) is achieved to about 0.025 by this way. It is indicated that the increase of Si content in hausmannite decreases the lattice parameter c and increases a slightly. Concentrations of constituent ions and cation vacancy in hausmannite have been calculated as a function of Po2 and temperature by using a defect chemical equilibrium relations. Possibility to finding the natural hausmannite which is supersaturated with SiO2 is suggested.
資源タイプ	紀要論文
出版タイプ	Version of Record
PISSN	0018-3474