BGS mineralogy and petrology collection record

Sample number	MR26542
Sample Donor	Dangerfield,J.; Merriman,R.J.;
Rock name	'Original entry: Porphyry'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Gyrn Ddu, Summit (1712ft Trig Pt)
50k map sheet	Nefyn (118) View images in GeoScenic related to 'Nefyn' View the geology near 'Nefyn'
Map reference	SH 401 468
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions