BGS mineralogy and petrology collection record

Sample number	E34421; COLLNOMN15;
Sample Donor	Nutt,M.J.C.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Excavated from Pylon Site 24A (see Shaft Log) Believed to be a passage between weathered (green) and unweathered purple slate
Locality details	1000 yds. 318o from Bryn Hall Youth Hostel
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 6269 6997
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.