BGS mineralogy and petrology collection record

Sample number E54460; COLLNOFU88;
Sample Donor Fletcher, Chris J.N
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Feldspar tuff. Padarn Tuff.
Locality details 50 m. at 170 deg. from the summit of Caerengan
50k map sheet Nefyn (118)

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Map reference SH 4770 5255
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


E54460

Cross Polarized, E54460

Plane Polarized, E54460

Plane Polarized, E54460