BGS mineralogy and petrology collection record

Sample number E4902; COLLNO20;
Sample Donor Jones, O.T.
Rock name 'Original entry: Ophitic Diabase'
Stratigraphy Not entered
Comments Boulder clay erratics.
Locality details 9. 250 Yds. due West of Penlan Farm, half a mile SW. of Lampeter Velfrey, Narberth.
50k map sheet Haverfordwest (228)

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Map reference SN 148 141
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


E4902

Cross Polarized, E4902

Plane Polarized, E4902

Plane Polarized, E4902