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 the geology 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.