BGS mineralogy and petrology collection record

Sample number MR26464; COLLNODAN331;
Sample Donor Dangerfield,J.; Merriman,R.J.;
Rock name 'Original entry: Slate'
Stratigraphy Cambrian. Lower Cambrian.. "Purple" Soft Blue Group.
Comments Purplish blue slate.. NGR as in register.
Locality details Quarry name: Dinorwic quarry.: at 1400 ft level, 1000 yds bearing 60 degrees from Hafotty Caernarvonshire
50k map sheet Bangor (106)

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Map reference SH 599 610
Year collected 1963 
Bore name Not applicable
Confidentiality No restrictions