BGS mineralogy and petrology collection record

Sample number E68283; COLLNOWP197A;
Sample Donor Pratt, W.
Rock name Not entered
Stratigraphy Not entered
Comments Tuff/tuffite. LVF.
Locality details 670 m at 292 deg from Bwlchmawr
50k map sheet Builth (196)

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Map reference SN 8868 5109
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


E68283

Cross Polarized, E68283

Plane Polarized, E68283

Plane Polarized, E68283