Ichinokawa mine, Saijo City, Ehime Prefecture, Shikoku Island, Japan
|Latitude & Longitude (WGS84):||33° 53' 20'' North , 133° 13' 10'' East|
|Latitude & Longitude (decimal):||33.8888888889, 133.219444444|
|Name(s) in local language(s):||愛媛県 西条市 市之川鉱山|
|Other regions containing this locality:||Asia|
Famous for its marvelous stibnite specimens, now found in museums around the world. Best specimens found in the late 19th century, during peak productivity of the mine (16,600 tons Sb produced 1875 to 1900). Closed in the 1950s. Locality labels for these specimens often under the obsolete name "Iyo province". The mine produced the antimony used in the bronze casting of the Great Buddha of Nara in 748 AD.
Simple stibnite-quartz veins cut across Cretaceous or Tertiary conglomerates and the underlying Sambagawa Belt schists and phyllites. The veins have been totally worked out, and it is hard to find even traces of stibnite here now.
10 valid minerals.
Rock Types RecordedEntries shown in red are rocks recorded for this region.
- Igneous rock
- Sedimentary rock and sediment
- Metamorphic rock and metasediment
This information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This data will improve over time as more accurate maps and data sets are added.
|Permian - Carboniferous252.17 - 358.9 Ma||Carboniferous-Permian sedimentary rocks|
References for regional geology:
Data provided by Macrostrat.org
Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.
- Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
- Okazaki, Y. (2012): Antimonit von Shikoku, Japan - ein historischer Fund. Lapis, 37 (11), 41 (in German).