BGS mineralogy and petrology collection record

Sample number	E9888; COLLNO100;
Sample Donor	Greenly,E.
Rock name	'Original entry: Xanthophyllite-Hornfels'
Stratigraphy	Not entered
Comments	Spotted'. Mona Complex. Fine grain. ANAL.MEM.1931 p132/3
Locality details	170yds.ENE.of Llanfaelog Church
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 338 730
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.