秋田県山本郡二ツ井町産のクリノプチロル沸石
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概要
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Miocene Pyroclastic rocks, mainly composed of glassy tuffs, are distributed at Futatsui-machi, Yamamoto-gun, Akita Prefecture. Japan. The clinoptilolite in these rocks is altered product from volcanic glass. The X-ray powder data of this clinoptilolite agrees well with that of the specimen Patagonia, and all diffraction peaks of the heated material at 900℃,disappear except 4Å of cristobalite. In differential thermal analysis, only one endothermic peak is observed between 100℃ and 300℃. The cation exchange capacity is 150〜180 m. e./100 g. This clinoptilolite is a soda-rich variety, by their chemal anslyses, and electron micrographs show that this specimen is platy shape.
- 日本粘土学会の論文
- 1968-03-30
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