BGS mineralogy and petrology collection record

Sample number	E63104; COLLNOKB104;
Sample Donor	Not entered
Rock name	Metadiorite. 'Original entry: Microdiorite'
Stratigraphy	Not entered
Comments	Intrusion in Nant Ffrancon Fm.(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Very fine-grained
Locality details	Pen Maen Mawr Quarry
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 7150 7540
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.