BGS mineralogy and petrology collection record

Sample number	E24172; COLLNO25A;
Sample Donor	Eyles,V.A.
Rock name	'Original entry: Slightly Brecciated Crystal Vitric Tuff'
Stratigraphy	Not entered
Comments	Medium - grey ash. Overlying
Locality details	No.7 Borehole, Llanwyrst. 330 yds. S13W of Old Shafts, New Pandora Lead Mine
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 767 601
Year collected	Not entered
Bore name	Llanwyrst No.7
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.