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Horobetsu sulphur mine, Soubetsu-cho (Sobetsu-cho), Iburi Province, Hokkaido, Japan

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 42° North , 140° East (est.)
Margin of Error:~10km
Name(s) in local language(s):幌別鉱山(幌別硫黄鉱山), 壮瞥町, 胆振総合振興局, 北海道, 日本
Other regions containing this locality:Asia

(Not to be confused with the Horobetsu Au-Ag-Cu mine in neighbouring Noboribetsu city!)

Pleistocene volcanogenic sedimentary sulfur-marcasite deposit related to the Usu volcanic zone, mined from 1940 until 1959.

"Type locality" for "horobetsuite", a rare intermediate variety of the stibnite-bismuthinite series.

Mineral List

8 valid minerals.

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Takeo Kato, Takeo Watanabe, Akira Nakamoto (1934) On the sulphur deposits associated with iron sulphide ore, found in the Quaternary Formation of Japan. Japan Journal of Geology and Geography, 15, 3-4, 287-324.

Hayase, K. (1955) Mineral. Journ. 1: 189-197.

Masao Sano et al., "Explanatory Text of the Geological Map of Japan - Noboribetsu-onsen", Geological Survey of Hokkaido, 1953

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