BGS mineralogy and petrology collection record

Sample number E67021; COLLNOWPR272;
Sample Donor Pratt, W.
Rock name 'Original entry: Mudstone'
Stratigraphy Not entered
Comments Ty'r Gawen Formation. Hornfelsed Mst.
Locality details 530 m at 94 deg from Cefncamberth
50k map sheet Barmouth (149)

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Map reference SH 5747 0368
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


E67021

Cross Polarized, E67021

Plane Polarized, E67021

Plane Polarized, E67021