BGS mineralogy and petrology collection record

Sample number MR24489; COLLNOKC780;
Sample Donor Chaperlin,K.; Sanderson,R.W.;
Rock name 'Original entry: Dark Grey Shale'
Stratigraphy Not entered
Comments D.Bifidus Zone, Llanvirn, Ordovician
Locality details Claypit of Caernarvon Brickworks, 400yds SE of Eryn Infermary and 1900yds SE of Caernarvon Castle
50k map sheet Caernarfon (105)

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Map reference SH 490 614
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions