UK Grid Reference: SW993590
Latitude: 50°23'45"N
Longitude: 4°49'27"W
A disused quarry in a pegmatite and known for its large feldspar crystals. First opened in the late 1870s, the Mining Journal records that production was hampered by severe winters on this exposed common.
The quarry was re-opened in 1917, during the First World War, to provide feldspar for electrical porcelain.
The quarry, which is owned by nearby Goonvein, is now a nature reserve cared for by Cornwall Wildlife Trust
References
- A.K. Hamilton Jenkin: Annotations to Ordnance Survey map, scale 1:10,000, sheet 41NE.
Mineral List
2 entries listed. 2 valid minerals.
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