BGS mineralogy and petrology collection record

Sample number E54251; COLLNOFU44;
Sample Donor Fletcher, Chris J.N
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Quartz feldspar tuff with pitted texture.
Locality details 660 m. at 68 deg from Penygroes School.
50k map sheet Nefyn (118)

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Map reference SH 4812 5338
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


E54251

Cross Polarized, E54251

Plane Polarized, E54251

Plane Polarized, E54251