BGS mineralogy and petrology collection record

Sample number MR24506; COLLNOKC817;
Sample Donor Chaperlin,K.; Sanderson,R.W.;
Rock name 'Original entry: Mica Schist'
Stratigraphy Proterozoic. Pre-Cambrian. Penmynydd Zone, Mona Complex
Comments Mica Schist with Quartz veins, Penmynydd Zone, Mona Complex, Pre-Cambrian. NGR as in register.
Locality details Quarry name: not recorded: at Ty'n Twll Disused Qry. 300 yd N of St. Cwyfan's Church, Porth Cwyfan
50k map sheet Caernarfon (105)

View images in GeoScenic related to 'Caernarfon'

View the geology near 'Caernarfon'

Map reference SH 336 685
Year collected 1961 
Bore name Not applicable
Confidentiality No restrictions