BGS mineralogy and petrology collection record

Sample number E67040; COLLNOWPR425B;
Sample Donor Pratt, W.
Rock name 'Original entry: Mudstone'
Stratigraphy Not entered
Comments Ty'r Gawen Formation. Mst.
Locality details 440 m at 027 deg from Peniarth Uchaf
50k map sheet Barmouth (149)

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Map reference SH 6349 0774
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


E67040

Cross Polarized, E67040

Plane Polarized, E67040

Plane Polarized, E67040