BGS mineralogy and petrology collection record

Sample number E52470; COLLNOMH898;
Sample Donor Howells,M.F.
Rock name Not entered
Stratigraphy Not entered
Comments Tuff, ?acid, chlorite rich, Caradoc, Ordovician.
Locality details SW of Cwm Beudy-Mawr. S of Llanberis Pass
50k map sheet Bangor (106)

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Map reference SH 6324 5560
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


E52470

Cross Polarized, E52470

Plane Polarized, E52470

Plane Polarized, E52470