BGS mineralogy and petrology collection record

Sample number	E26904; COLLNOFD14;
Sample Donor	Dunning,F.W.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Narrow dyke in ?Rhyolite (E21)
Locality details	Outcrop, N end of Llyn Ty'n-Y-Mynydd
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 767 592
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.