BGS mineralogy and petrology collection record

Sample number	E26879; COLLNOAA107;
Sample Donor	Archer,A.A.
Rock name	'Original entry: ?Tuff Band In Mudstone'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Llanwyrst Lead Mine. Inclined Borehole No.13, 610 yds. S52W of Parc Villa
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 781 597
Year collected	Not entered
Bore name	Llanwyrst No.13
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.