> On 30 Mar 2018, at 14:39, Lynne Mayers <[log in to unmask]> wrote:
>
> Can anyone help me on the presence of arsenic with copper, lead etc. outside of the south west, in UK or Ireland? Are there occasional pockets of the mineral elsewhere, which would have required calcining?
Ceunant Mine, SH633645, near Bethesda, Gwynedd (Bick, David, _The Old Copper Mines of Snowdonia, 3rd ed 2003 p. 118–9 – citing Memoirs of the Geological Survey, _Special Reports on the Mineral Resources of Great Britain_ Vol XV, 44)
Bick refers to a “… series of flues and interconnecting passages … radiating from a common point, where once presumably there was a furnace.”
These were still visible on the ground, though much degraded, c. 2010.
Dave
—
David Linton
01341 280901
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