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Japanese montmorillonite localities

972 localities

A list of Japanese montmorillonite localities described in citable papers and books. The list is edited based on the editing policy of location lists.

Year of description

Location (Prefecture, Synonym, Comments)

Year 1930

Kaminoyama (Yamagata, as Bentonite)

Year 1937

Nagatare (Fukuoka), Mikawa (Niigata, Higashi-Kanbara), Tomari mine (Hokkaido, as Bentonite)

Year 1938

Oginokubo (Yamagata, Monden, as Bentonite), Yunoshiri (Hokkaido, Kudo, as Bentonite), Haboro river (Hokkaido, Tomamae, as Bentonite), Yoshigahira (Niigata, Mori, Minami-Kanbara, as Bentonite), Yanagishima (Niigata, Maki, as Bentonite), Komatsubara (Nagano, Kyowa, as Bentonite), Nakaki (Gunma, Usui, as Bentonite), Sakamoto (Ehime, Onsen, as Bentonite), Kiyobe (Hokkaido, Era, as Bentonite), Fukushima (Hokkaido, Matsumae, as Bentonite), Fukuro (Aomori, Yamagata, as Bentonite), Takizawa (Fukushima, Ikki, as Bentonite), Rokkaku mine (Yamagata, as Bentonite), Tanabayashi (Yamagata, Yamamoto, as Bentonite), Waruya valley (Yamagata, Yamamoto, as Bentonite), Shiromizu river (Hokkaido, Kaitorima, as Bentonite), Okujiri island (Hokkaido, as Bentonite), Ueshima (Niigata, Mikawa, as Bentonite)

See Japanese page for more localities.