BGS mineralogy and petrology collection record

Sample number	E7243; COLLNO270;
Sample Donor	Thomas, Dr.
Rock name	'Original entry: Quartz Porphyry (? Decomposed)'
Stratigraphy	Not entered
Comments	Not entered
Locality details	13. 150 Yds. NE. of Barch.
50k map sheet	St. Davids (209) View images in GeoScenic related to 'St. Davids' View the geology near 'St. Davids'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.