BGS mineralogy and petrology collection record

Sample number	S71127
Sample Donor	Rock,N.M.S.
Rock name	'Original entry: Quartz-Feldspar Porphyry'
Stratigraphy	Not entered
Comments	Central quartz-feldspar porphyry; composite near-horizontal Caledonian sheet several metres thick in Lewisian
Locality details	S end of A' Mhachair, Iona
50k map sheet	Iona (43) View images in GeoScenic related to 'Iona' View the geology near 'Iona'
Map reference	NM 2652 2305
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions