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Minamishiraoi deposits (Minamishiraoi baryte mine), Shiraoi-cho, Shiraoi-gun, Iburi Province, Hokkaido, Japan

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Name(s) in local language(s):南白老バライト鉱山, 北海道 (胆振総合振興局) 白老郡 白老町 森野

Kuroko-type barite deposit, replacing Tertiary volcanic rocks. Kaolin clay occurring widely and abundantly in the argillized zone, is also being exploited.
This baryte mine was started in 1950, and closed in 1988 due to heavy landslide (a mine worker dead).

Mineral List

7 valid minerals.

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Yoneda, T. (1993). Barite ores and alteration minerals of the Minamishiraoi Kuroko-type barite deposit, southwestern Hokkaido, Japan: Implication for the environment of ore formation. Resource Geology Special Issue, (17), 120-131.

米田哲朗. (1989). 北海道南白老重晶石・カオリン鉱床の粘土鉱物組成. 粘土科学, 29(2), 69-80. Yoneda Tetsuro (1989) Clay Mineral Composition of the Minamishiraoi Barite-Kaolin Deposits, Hokkaido, Japan. [in Japanese] Nendo Kagaku 29(2), 69-80

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