BGS mineralogy and petrology collection record

Sample number	E41586; COLLNOSN1639;
Sample Donor	Sanderson,R.W.
Rock name	'Original entry: Porphyritic Andesite (Albitised)'
Stratigraphy	Not entered
Comments	Boulder from agglomerate. Ordovician
Locality details	E face 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 2220 9693
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.