In 1819 Michael Faraday visited the mines and described the work of the copper ladies at Mynydd Parys Mountain near Amlwch.
"...The ore is raised from the mine by the whimsy in large heavy masses and is then thrown over a stage onto the ground below where it comes into charge of the cobbers, principally women and boys. We came up to a large group of these, about 8 or 9 women were sitting on the ground in the midst of heaps of ore of the large and small, their mouths were covered with a cloth to keep the dust of the ore from entering with the breath.
The fingers and thumb of the left hand were cased in strong iron tubes forming a sort of glove. A large hammer was handled in the right hand and a block of ore placed before them served as an anvil. Thus furnished they were employed in breaking lumps of ore into small pieces and selecting the good from the bad."