BGS mineralogy and petrology collection record

Sample number E50429; COLLNOLB455;
Sample Donor Jackson,A.A
Rock name 'Original entry: Sedimentary Rock'
Stratigraphy Not entered
Comments Allt Lwyd Formation; Bioturbated sediment
Locality details 220 m 352 deg from Allt Lwyd
50k map sheet Harlech (135)

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Map reference SH 7969 2912
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


E50429

Cross Polarized, E50429

Plane Polarized, E50429

Plane Polarized, E50429