BGS mineralogy and petrology collection record

Sample number	MR862
Sample Donor	Not entered
Rock name	'Original entry: Feldspar Porphyry'
Stratigraphy	Not entered
Comments	Intrusive into Bala. 250/41, B/154
Locality details	Bwlch Mawr, 1.5 mi SE of Clynnog Fawr, Caernarvonshire
50k map sheet	Nefyn (118) View images in GeoScenic related to 'Nefyn' View the geology near 'Nefyn'
Map reference	SH 427 478
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions