UK Grid Reference: SS827794
Latitude: 51°30'3"N
Longitude: 3°41'24"W
A very small iron/manganese mine operating c1860. Although minerals here are generally minute and largely unexceptional, the small dumps here have subsequently produced the first British occurrence and only the second world occurrence of pyrobelonite. The site is now within a farmyard and has almost completely disappeared.
Pyrobelonite occurs as individual grains and clusters associated with braunite aggregates, minute hausmannite crystals, and as lamellae between barite laths. Typically very small, exceptionally the grain size reaches up to 1 cm and is often intimately associated with massive vanadinite. Also as veinlets, generally less than 0.5 mm thick, which can be traced for up to 3 cm (Criddle & Symes (1977).
Also the only location for wulfenite in south Wales, rare wulfenite occurs as white to yellow bevelled rectangular plates to 3mm, projecting from fracture surfaces in compact manganese ore with baryte and calcite lenticles (Braithwaite & Lamb, 1987).
Criddle, A.J., & Symes, R.F., 1977. Mineralization at Tŷ Coch, Glamorgan (Mid Glamorgan), Wales: the second occurrence of pyrobelonite. Mineralogical Magazine, 41, 85-90.
Braithwaite, R.S.W. & Lamb, R.P.H., 1986. Wulfenite from Ty Coch, Glamorgan (Powys), South Wales. Mineralogical Magazine, 50, 180-181.
Mineral List
10 entries listed. 10 valid minerals.
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. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Mineral and Locality Search
