BGS mineralogy and petrology collection record

Sample number E46331; COLLNOBP33;
Sample Donor Lowe,D.J.
Rock name 'Original entry: Volcanic Rock'
Stratigraphy Not entered
Comments Lava in feldspathic Sst., Ordovician
Locality details Knoll side, 1170 m at 018 deg from Bridge over Nant Hir
50k map sheet Harlech (135)

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Map reference SH 7953 3209
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


E46331

Cross Polarized, E46331

Plane Polarized, E46331

Plane Polarized, E46331