BGS mineralogy and petrology collection record

Sample number	E15883; COLLNO263;
Sample Donor	Dixon,E.E.L.
Rock name	'Original entry: Pyrite, Siderite.'
Stratigraphy	Not entered
Comments	Pyrite Brass stone. Not typical, in 4 ft. seam. Sample 14/4 of The Coal Survey, Treforest.
Locality details	Duffryn Rhondda Colliery. Avan Valley.
50k map sheet	Pontypridd (248) View images in GeoScenic related to 'Pontypridd' View the geology near 'Pontypridd'
Map reference	SS 841 956
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.