Liscannor Flagstone

Liscannor or Moher Stone is Carboniferous in age (354-290 million years old) and is quarried at the Cliffs of Moher and Luogh, County Clare, Ireland. It has always been quarried locally but became a major industry exporting to the UK in the 19th Century, this ceased during World War I but some of the quarries were re-opened in the 1960's. Liscannor is a grey-blue to dark grey, fine grained, siliceous flagstone often with distinctive markings which are the fossil tracks of marine worms. It has been used extensively in the West of Ireland and throughout the United Kingdom. It is generally used for paving but may occasionally be seen as roofing or wall stone