BGS mineralogy and petrology collection record

Sample number	E10307; COLLNO519;
Sample Donor	Greenly,E.
Rock name	'Original entry: Jasper-'
Stratigraphy	Not entered
Comments	Associated with reconstructed Lmst. Mona Complex. ANAL.MEM.1931 p138
Locality details	Great jasper in limestone, S.of Cerig Mawr
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 394 638
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.