BGS mineralogy and petrology collection record

Sample number	E18552; COLLNOKD28;
Sample Donor	Dunham,K.C.
Rock name	'Original entry: Porcillanous Shale'
Stratigraphy	Not entered
Comments	see n.p.o. mem. Vol. 1 p 58 ALTERED SHALE IMMEDIATELY BENEATH WHIN SILL
Locality details	WHITE FORCE
50k map sheet	Brough (31) View images in GeoScenic related to 'Brough' View the geology near 'Brough'
Map reference	NY 852 280
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.