BGS mineralogy and petrology collection record

Sample number	S29307; COLLNOE1477;
Sample Donor	Macgregor,A.G.
Rock name	'Original entry: Acid Porphyrite'
Stratigraphy	Not entered
Comments	?Porphyrite dyke; biotite and very sparse quartz as well as felspar phenocrysts
Locality details	Roughy Burn, 1300 yds N 30 deg W of Kirkton Hill
50k map sheet	Haddington (33) View images in GeoScenic related to 'Haddington' View the geology near 'Haddington'
Map reference	NT 4691 5542
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.