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imogolite
Imogolite is an aluminium silicate clay mineral with formula: Al2SiO3(OH)4. It occurs in soils formed from volcanic ash and was first described in 1962 for an occurrence in Uemura, Kumamoto prefecture, Kyushu Region, Japan.〔(Imogolite on Mindat.org )〕 Its name is derived from the Japanese ''imogo'' for the brownish yellow soil derived from volcanic ash. It occurs with allophane, quartz, cristobalite, gibbsite, vermiculite and limonite.〔(Handbook of Mineralogy )〕 == Further reading ==
* * (Contains structure illustration)
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「imogolite」の詳細全文を読む
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