BGS mineralogy and petrology collection record

Sample number E54429; COLLNOFU1;
Sample Donor Fletcher, Chris J.N
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Tuffceous Sst. Padarn Tuff
Locality details 115 m 59 deg from Summit of Cilgwyn
50k map sheet Nefyn (118)

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Map reference SH 4986 5434
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E54429

Cross Polarized, E54429

Plane Polarized, E54429

Plane Polarized, E54429