BGS mineralogy and petrology collection record

Sample number E39914; COLLNOCE178;
Sample Donor Evans,C.D.R.
Rock name Not entered
Stratigraphy Not entered
Comments Section of Lower Crafnant Gp. Tuffisite, 68ft above base of section
Locality details 670 ft NE of Swallow Falls
50k map sheet Bangor (106)

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Map reference SH 7661 5788
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


E39914

Cross Polarized, E39914

Plane Polarized, E39914

Plane Polarized, E39914