BGS mineralogy and petrology collection record

Sample number	E10902; COLLNO303;
Sample Donor	Blake,Professor
Rock name	'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Palaeozoic Intrusions. See Mem.Geol.of Anglesey.cf.p.520. Porphyritic labradorite. Augite well-preserved
Locality details	Gars Llwyd, near Llaniestyn
50k map sheet	Llandudno (94) View images in GeoScenic related to 'Llandudno' View the geology near 'Llandudno'
Map reference	SH 575 790
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.