BGS mineralogy and petrology collection record

Sample number	E24577; COLLNOAA23;
Sample Donor	Archer,A.A.
Rock name	Tuff. 'Original entry: Crystal Vitric Tuff'
Stratigraphy	Not entered
Comments	Caverous near joints due to leaking of Ca Co3 ? Vitric Tuff
Locality details	No.10 B.H. Llanwyrst - (Llanwysrt Mine)
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.