BGS mineralogy and petrology collection record

Sample number	E5525; COLLNO340;
Sample Donor	Barrow, G.
Rock name	Porphyry. 'Original entry: Granite Porphyry'
Stratigraphy	Not entered
Comments	Elvan.
Locality details	Close to China Works, High Moor.
50k map sheet	Camelford (336) View images in GeoScenic related to 'Camelford' View the geology near 'Camelford'
Map reference	SX 171 801
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.