BGS mineralogy and petrology collection record

Sample number	E21127; COLLNORB1774;
Sample Donor	Road Research Laboratory
Rock name	'Original entry: Hornblende Schist, Veined By Felsite'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Bwlch Gwyn Qu., 200yd. N.of Gaerwen
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 480 728
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.