Gwynedd Archaeological Trust
Regional Historic Environment Record

Mona Mine Kilns and Sublimation Chambers, Parys Mountain

Primary Reference Number (PRN) : 11495
Trust : Gwynedd
Community : Amlwch
Unitary authority : Ynys Mon
NGR : SH44609030
Site Type (preferred type first) : POST-MEDIEVAL KILN
Status : Scheduled Ancient Monument

Description :
The rare example of a key element in the processing of non-ferrous metal ores, the calcining of copper. The Mona mine constitutes one of the sites which makes up the Mynydd Parys copper mining complex, the most productive copper mine in the world by the end of the 18th century. Calcining and sulphur sublimation was practised at Mona mine from before 1785. This was the process of roasting ore in heaps to remove sulphur or other impurities. The sulphur discharged was condensed into a fine yellow powder or 'sublimated' in long stone-built chambers, for use in the chemical and explosives industries. The kilns are visible as substantial craters where the ore has been removed, leaving a residue of pink stone. The scheduled area includes an explosives magazine, kilns and sublimation chambers together with their characteristic associated waste. <1>

Sources :
Hadley, A. , 2016 , Proposed Wind Turbine at Nant-y-fran, Cemaes, Isles of Anglesey. Cultural Heritage Impact Assessment. ( © Archaeology Wales)

Events :
45130 : Proposed Wind Turbine at Nant-y-fran, Cemaes, Isle of Anglesey. Cultural Heritage Impact Assessment. (year : 2016)

Related PRNs :

Compiled date : 29-08-2001


The above data are supplied by GAT in partnership with its Local Authorities (Anglesey, Conwy and Gwynedd County Councils, and Snowdonia National Park Authority), © GAT 2018 (and in part © Crown, 2018 - as indicated)
This information is supplied for the purposes of personal interest only and may not be used as part of a commercial project.

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