BGS mineralogy and petrology collection record

Sample number	E51934; COLLNOLA620;
Sample Donor	Allen,P.M.
Rock name	Porphyry. 'Original entry: Porphyry'
Stratigraphy	Not entered
Comments	Porphyry.
Locality details	200 Yds. at 260 deg. from Blaen llyn.
50k map sheet	St. Davids (209) View images in GeoScenic related to 'St. Davids' View a geological map near 'St. Davids'
Map reference	SM 8754 2928
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.