BGS mineralogy and petrology collection record

Sample number	E14363; COLLNO1180;
Sample Donor	Road Research Laboratory
Rock name	Not entered
Stratigraphy	Not entered
Comments	Palaeozoic dyke cutting Pre-Cambrian beds. Loan 1315 to Dr.Blyths of Imperial College (slide returned) See also PET VOL XXXVI pp515/6
Locality details	Jerusalem Quarry, near Gaerwen, which is 4.5m. SE.of Llangefni
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 476 720
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.