BGS mineralogy and petrology collection record

Sample number	S23367; COLLNOL317;
Sample Donor	Macgregor,A.G.
Rock name	'Original entry: Acid Biotite Porphyrite Agm'
Stratigraphy	Not entered
Comments	Very feldspathic igneous; Ayrshire Memoir, p. 34
Locality details	870 yds E 12 deg S from Trig Point 1114 ft, near Avon Head
50k map sheet	Kilmarnock (22) View images in GeoScenic related to 'Kilmarnock' View the geology near 'Kilmarnock'
Map reference	NS 5985 3177
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.