Latitude & Longitude (WGS84):
52° 48' 37'' North , 4° 31' 47'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SH295267
Mindat Locality ID:
155778
Long-form identifier:
mindat:1:2:155778:0
Other/historical names associated with this locality:
Caernarvonshire
Port Nigel Lead Mine, the most westerly of eight mines that worked a lead-copper lode (Main Lode) running east-west across the St Tudwall Peninsula between the headland of Penrhyn Du and the village of Llanengan, all within the parish of Llanengan.
Port Nigel Mine, overlooking the village of Llanengan, worked in the latter half of the 19th century, was possibly the most extensive of the Llanengan mines, with stoping to 80 fathoms below adit. Despite this, output appears cursory and sporadic, with a maximum recorded output of 322 tons of lead ore in 1881, and a total of 880 tons between 1874-83. No copper or zinc ore is recoded as being raised.
A ruined engine house and an impressive mine chimney, the latter restored in the 1990s, remain.
Select Mineral List Type
Standard
Detailed Gallery
Strunz
Chemical Elements
Mineral List
4 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts |
|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| Group 4 - Oxides and Hydroxides |
|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates |
|---|
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
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