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Letter Mine, Letter, Mizen Peninsula, Co. Cork, Ireland

Latitude: 51°33'42"N
Longitude: 9°31'7"W
Baryte and copper mine worked sporadically from 1852-1893. The majority of mining (for baryte) took place from 1889-1893 with 800 tons being produced.

A blocked up adit level is visible today along with several fenced off ?collapses or pits. A considerable amount of spoil also remains and is highly similar to material found at Ballycummisk mine.

Main site and area of spoil at ITM 494719 535432

Mineral List

'Chlorite Group'

13 entries listed. 12 valid minerals.

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Dr. Richard Unitt & Barry Flannery (personal observations 22-1-11)

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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