BGS mineralogy and petrology collection record

Sample number MR29642; COLLNOXT255;
Sample Donor Ruckley,N.A.
Rock name 'Original entry: Porphyrite'
Stratigraphy Dinantian. Lower Carboniferous ?.
Comments Porphyrite. NGR as in register.
Locality details Quarry name: not recorded: at Disused quarry 900 yds due E of Knockhanty
50k map sheet Campbeltown (12)

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Map reference NR 652 200
Year collected 1967 
Bore name Not applicable
Confidentiality No restrictions