BGS mineralogy and petrology collection record

Sample number MR26687
Sample Donor Goode,A.J.J.; Sanderson,R.W.;
Rock name 'Original entry: Siltstone'
Stratigraphy Ordovician. Lower Ordovician. Llandeilo
Comments Coarse fissile siltstone.. NGR as in register.
Locality details Quarry name: Disused pit.: at 75 yds 129 degrees from Llanerch gwynion Caernarvonshire
50k map sheet Snowdon (119)

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Map reference SH 804 496
Year collected 1963 
Bore name Not applicable
Confidentiality No restrictions