BGS mineralogy and petrology collection record

Sample number E54469; COLLNOFU97;
Sample Donor Fletcher, Chris J.N
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Quartz crystal tuff. Padarn Tuff.
Locality details 30 m. at 130 deg. from the summit of Cilgwyn
50k map sheet Nefyn (118)

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Map reference SH 4846 5366
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


E54469

Cross Polarized, E54469

Plane Polarized, E54469

Plane Polarized, E54469