BGS mineralogy and petrology collection record

Sample number	MR26543
Sample Donor	Dangerfield,J.; Merriman,R.J.;
Rock name	'Original entry: Porphyry'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Crags on Pen-y-Caer, 975yds at 335deg from Tyddyn-mawr
50k map sheet	Nefyn (118) View images in GeoScenic related to 'Nefyn' View the geology near 'Nefyn'
Map reference	SH 429 456
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions