BGS mineralogy and petrology collection record

Sample number MR26367
Sample Donor Dangerfield,J.
Rock name 'Original entry: Rhyolite'
Stratigraphy Ordovician. Ordovicina..
Comments Rhyolite. NGR as in register.
Locality details Quarry name: Cwm Howard quarry.: at 600 yds bearing 150 degrees from gas works Llandudno junction Caernarvonshire
50k map sheet Llandudno (94)

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Map reference SH 787 810
Year collected 1963 
Bore name Not applicable
Confidentiality No restrictions