BGS mineralogy and petrology collection record

Sample number	E10012; COLLNO224; NEGM.1100;
Sample Donor	Greenly,E.
Rock name	'Original entry: Jasper'
Stratigraphy	Not entered
Comments	Mona Complex. Anal.Mem.1931.p.138. Associated with reconstructed Lmst.
Locality details	In Lmst., 900ft. SW. Hendre-bach
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 428 744
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.