BGS mineralogy and petrology collection record

Sample number	E4083; COLLNO169;
Sample Donor	Allister, D.Mc.
Rock name	Granite. 'Original entry: Granite'
Stratigraphy	Not entered
Comments	Porphyritic quartz.
Locality details	Wheal Castle. (From burrow).
50k map sheet	Penzance (351) View images in GeoScenic related to 'Penzance' View a geological map near 'Penzance'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.