The Lleyn Peninsula, an undulating spur reaching out from the mountains of Snowdonia, is the most westerly point of Gwynedd. Twenty five miles long, it averages eight miles in width, and separates Caernarfon and Cardigan Bays. It is bordered to the east by the A487 Caernarfon-Porthmadog road.
At various times manganese, iron and lead-copper mines have operated on the Lleyn.
Mineral list contains entries from the region specified including sub-localitiesMineral List:71 entries listed. 54 valid minerals. 4 type localities (valid minerals).
Localities in this Region:
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- Gwynedd (Caernarvonshire)
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The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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