BGS mineralogy and petrology collection record

Sample number MR23342
Sample Donor Collins,G.H.
Rock name 'Original entry: Slate'
Stratigraphy Silurian. Lower Silurian.
Comments Dark blue shaly Slate. NGR as in register.
Locality details Quarry name: not recorded: at Ysgyborfach Qry. 1000 yd due S of Llanbyther Station Cardiganshire
50k map sheet Llangranog (194)

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Map reference SN 520 432
Year collected 1960 
Bore name Not applicable
Confidentiality No restrictions