BGS mineralogy and petrology collection record

Sample number E37132; COLLNOHF166;
Sample Donor Howells,M.F.
Rock name Not entered
Stratigraphy Not entered
Comments ?Green tuff band in purple slate
Locality details Penrhyn Qry. Loose Block
50k map sheet Bangor (106)

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Map reference SH 616 648
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


E37132

Cross Polarized, E37132

Plane Polarized, E37132

Plane Polarized, E37132