BGS mineralogy and petrology collection record

Sample number	E18184; COLLNOA11MI26970;
Sample Donor	Dines,H.G.
Rock name	'Original entry: Muscovite, Biotite, Granite'
Stratigraphy	Not entered
Comments	North Pig Lode, 11th level. Country rock adjacent to lode. Feldspar replaced by quartz.
Locality details	Geevor Mine, St. Just.
50k map sheet	Penzance (351) View images in GeoScenic related to 'Penzance' View the geology near 'Penzance'
Map reference	SW 374 347
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.