BGS mineralogy and petrology collection record

Sample number MR25040; COLLNOC1094;
Sample Donor Collins,G.H.
Rock name 'Original entry: Dolerite'
Stratigraphy Not entered
Comments Coarse dolerite.. NGR as in register.
Locality details Tre Llys quarry: at 900 yds N 80 degrees E of St Catherines church. Granston. Pembrokeshire
50k map sheet St. Davids (209)

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Map reference SM 905 343
Year collected 1961 
Bore name Not applicable
Confidentiality No restrictions