BGS mineralogy and petrology collection record

Sample number E46620; COLLNOLA374;
Sample Donor Allen,P.M.
Rock name 'Original entry: Sandstone Greywacke'
Stratigraphy Not entered
Comments ? Greywacke
Locality details 280 yds 110 deg from Pont Wen
50k map sheet Harlech (135)

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Map reference SH 7397 2263
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


E46620

Cross Polarized, E46620

Plane Polarized, E46620

Plane Polarized, E46620