BGS mineralogy and petrology collection record

Sample number E39918; COLLNOCE182;
Sample Donor Evans,C.D.R.
Rock name Not entered
Stratigraphy Not entered
Comments Section of Lower Crafnant Gp. Tuffisite,204ft above base of section
Locality details 800 ft NE of Swallow Falls
50k map sheet Bangor (106)

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Map reference SH 7662 5791
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


E39918

Cross Polarized, E39918

Plane Polarized, E39918

Plane Polarized, E39918