BGS mineralogy and petrology collection record

Sample number	E38347; MR31865; COLLNO63;
Sample Donor	Hart,F.; Oldershaw,D.;
Rock name	'Original entry: Calcitic Lithic Greywacke'
Stratigraphy	Not entered
Comments	Blocky, micaceous, fine to medium grained grey sandstone. Pennant. Carboniferous. Used as part of 1970's Roadstone Project
Locality details	Craig-yr-Heog. Large working quarry, 1.5 miles NNE. of Pontypridd.
50k map sheet	Pontypridd (248) View images in GeoScenic related to 'Pontypridd' View the geology near 'Pontypridd'
Map reference	ST 080 917
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.