BGS mineralogy and petrology collection record

Sample number E40329; COLLNOCE229;
Sample Donor Evans,C.D.R.
Rock name Not entered
Stratigraphy Not entered
Comments Coarse, bleached lithic tuff; Drosgl Volcanic Gp?
Locality details 2800 ft, 307 deg E of N of The Weir in Llyn-Dulyn
50k map sheet Bangor (106)

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Map reference SH 6956 6686
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


E40329

Cross Polarized, E40329

Plane Polarized, E40329

Plane Polarized, E40329