BGS mineralogy and petrology collection record

Sample number MR26425
Sample Donor Dangerfield,J.
Rock name 'Original entry: Slate'
Stratigraphy Cambrian. Lower Cambrian. Hard Blue Slate Group.
Comments Purplish blue slate. NGR as in register.
Locality details Quarry name: Penrhyn quarry.: at 950 yds bearing 225 degrees from Ogwen Bank. Caernarvonshire
50k map sheet Bangor (106)

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Map reference SH 620 649
Year collected 1963 
Bore name Not applicable
Confidentiality No restrictions