BGS mineralogy and petrology collection record

Sample number MR27153; COLLNODAN593;
Sample Donor Dangerfield,J.; Merriman,R.J.;
Rock name 'Original entry: Porphyritic Dolerite'
Stratigraphy Not entered
Comments Intruded into Lingula Flags
Locality details Quarry name: White Rock quarry: at 750 yds bearing 280 degrees from Hendre-gefeilliard 1,3/4 mile due E of Dolgelly station Merioneth
50k map sheet Harlech (135)

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Map reference SH 750 182
Year collected 1964 
Bore name Not applicable
Confidentiality No restrictions