BGS mineralogy and petrology collection record

Sample number MR30034; COLLNORJM25;
Sample Donor Merriman,R.J.; Oldershaw,D.;
Rock name 'Original entry: Breccia'
Stratigraphy Llandovery. Llandovery, Silurian.
Comments Sphalerite in breccia. NGR as in register.
Locality details Quarry name: Nant-Y-Margm Mine: at Nant-Y-Margm Mine (disused), lower boat level 500 yds 230 deg from Rhandir-Mwyn
50k map sheet Lampeter (195)

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Map reference SN 781 435
Year collected 1968 
Bore name Not applicable
Confidentiality No restrictions