BGS mineralogy and petrology collection record

Sample number	E10230; COLLNO442;
Sample Donor	Greenly,E.
Rock name	'Original entry: Fine Porphyritic Diabase'
Stratigraphy	Not entered
Comments	Not entered
Locality details	N.side of Porth Cerig Iago
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 364 655
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.