BGS mineralogy and petrology collection record

Sample number E9681; COLLNO16;
Sample Donor Greenly,E.
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments See Mem.Geol.of Anglesey,p.284.
Locality details Coast 450ft. NW.of Porth-y-dwfr
50k map sheet Holyhead (93)

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Map reference SH 293 906
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


E9681

Cross Polarized, E9681

Plane Polarized, E9681

Plane Polarized, E9681