BGS mineralogy and petrology collection record

Sample number	E41585; COLLNOSN1637;
Sample Donor	Sanderson,R.W.
Rock name	Tuff. 'Original entry: Crystal Lithic Tuff'
Stratigraphy	Not entered
Comments	Agglomerate or brecciated albite porphyry. Ordovician
Locality details	W side of Qry. E end of Montgomery Hill
50k map sheet	Montgomery (165) View images in GeoScenic related to 'Montgomery' View the geology near 'Montgomery'
Map reference	SO 2218 9695
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.