BGS mineralogy and petrology collection record

Sample number	MR21990
Sample Donor	Road Research Laboratory
Rock name	'Original entry: Quartz Dolerite'
Stratigraphy	Not entered
Comments	Quartz Dolerite Aggregate. NGR estimated. PET XLIII p316
Locality details	Crossthwaite Qry: at Middleton in Teesdale Durham
50k map sheet	Brough (31) View images in GeoScenic related to 'Brough' View a geological map near 'Brough'
Map reference	NY 925 254
Year collected	1959
Bore name	Not applicable
Confidentiality	No restrictions