BGS mineralogy and petrology collection record

Sample number MR26409
Sample Donor Dangerfield,J.
Rock name 'Original entry: Tuff'
Stratigraphy Cambrian. Arvonian. Rhyolitic Tuff Of Greenly.
Comments Crystal rhyolite tuff.(Rhyolitic tuff of Greenly).. NGR as in register.
Locality details Quarry name: Garth quarry: at 1330 yds bearing 350 degrees from Seion and 350 yds bearing 290 degrees from Garth farm. Caernarvonshire
50k map sheet Bangor (106)

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Map reference SH 547 682
Year collected 1963 
Bore name Not applicable
Confidentiality No restrictions