BGS mineralogy and petrology collection record

Sample number	E7903; COLLNO40;
Sample Donor	Barrow, G.
Rock name	Porphyry. 'Original entry: Granite Porphyry'
Stratigraphy	Not entered
Comments	Greissened.
Locality details	Roadside, NE. corner, Treslee Downs.
50k map sheet	Camelford (336) View images in GeoScenic related to 'Camelford' View the geology near 'Camelford'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.