BGS mineralogy and petrology collection record

Sample number	E20934; COLLNORB1764;
Sample Donor	Road Research Laboratory
Rock name	'Original entry: Granophyric Microdiorite'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Penmaenmawr Quarry. Penmaenmawr.
50k map sheet	Llandudno (94) View images in GeoScenic related to 'Llandudno' View the geology near 'Llandudno'
Map reference	SH 702 755
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.