BGS mineralogy and petrology collection record

Sample number MR26390
Sample Donor Dangerfield,J.
Rock name 'Original entry: Tuff'
Stratigraphy Cambrian. Arvonian. Rhyolitic Tuff Of Greenly.
Comments Coarse greenish tuff.. NGR as in register.
Locality details Quarry name: Cil Melyn quarry.: at 600 yds bearing 145 degrees from Penrhos-Garnedd. Caernarvonshire
50k map sheet Bangor (106)

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Map reference SH 562 700
Year collected 1963 
Bore name Not applicable
Confidentiality No restrictions