BGS mineralogy and petrology collection record

Sample number E46319; COLLNOBP21;
Sample Donor Lowe,D.J.
Rock name 'Original entry: Volcanic Rock'
Stratigraphy Not entered
Comments ? Lava, Ordovician
Locality details Exposure by Wall, 640 m at 129 deg from Caer Defaid
50k map sheet Harlech (135)

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Map reference SH 7991 2310
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


E46319

Cross Polarized, E46319

Plane Polarized, E46319

Plane Polarized, E46319