Latitude: 52°44'52"N
Longitude: 7°40'24"W
Stratabound, carbonate-hosted Zn-Pb deposit.
The orebody was found in 1990 during soil geochemistry. The deposit is currently being worked by Anglo American-Ivernia West Joint Venture. Zinc assays are averagely 12% and lead are 2%. The main ores consist of galena, sphalerite and pyrite found as compact fine-grained material.
Lisheen orebodies are usually stratiform varying in thickness from 1 m to 30 m and 'room and pillar' mining is the predominant method used for extraction.
The mine produces 5,000 tonnes of ore every working day.
Ore is found in the Main, North, Derryville, and Bog zones. Massive nickel arsenide ore (gersdorffite and nickeline) has been found in the Killoran fault zone.
The orebodies are compact and vugs, even of calcite, are scarce.
References
- Econ Geol 100 (2005) 63-86.
- Econ. Geol. 103 (2008) 1641-1655.
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http://www.gl.rhbnc.ac.uk/geode/basins/Lisheen.html
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http://www.lisheenmine.ie/Mineral List
24 entries listed. 24 valid minerals.
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