BGS mineralogy and petrology collection record

Sample number E39919; COLLNOCE183;
Sample Donor Evans,C.D.R.
Rock name Not entered
Stratigraphy Not entered
Comments Section of Lower Crafnant Gp. Tuffisite,243ft above base of section
Locality details 840 ft NE of Swallow Falls
50k map sheet Bangor (106)

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Map reference SH 7663 5792
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


E39919

Cross Polarized, E39919

Plane Polarized, E39919

Plane Polarized, E39919