BGS mineralogy and petrology collection record

Sample number E54450; COLLNOFU23;
Sample Donor Fletcher, Chris J.N
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Quartz crystal tuff. Padarn Tuff
Locality details 250 m 262 deg from Chapel in Cilgwyn
50k map sheet Nefyn (118)

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Map reference SH 4922 5401
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


E54450

Cross Polarized, E54450

Plane Polarized, E54450

Plane Polarized, E54450