BGS mineralogy and petrology collection record

Sample number E54242; COLLNOFU34;
Sample Donor Fletcher, Chris J.N
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Finely brecciated, green to pink, crystal poor tuff.
Locality details 575 m. at 71 deg from Penygroes School.
50k map sheet Nefyn (118)

View images in GeoScenic related to 'Nefyn'

View the geology near 'Nefyn'

Map reference SH 4806 5333
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


E54242

Cross Polarized, E54242

Plane Polarized, E54242

Plane Polarized, E54242