BGS mineralogy and petrology collection record

Sample number E54457; COLLNOFU85;
Sample Donor Fletcher, Chris J.N
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Melanocratic volcanic. Padarn Tuff
Locality details 460 m 263 deg from Central Chapel in Talysarn
50k map sheet Nefyn (118)

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Map reference SH 4843 5299
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


E54457

Cross Polarized, E54457

Plane Polarized, E54457

Plane Polarized, E54457