BGS mineralogy and petrology collection record

Sample number E39907; COLLNOCE171;
Sample Donor Evans,C.D.R.
Rock name Not entered
Stratigraphy Not entered
Comments Vitric tuff? part of horizon nr. Llyn Eigau dolerite
Locality details 500 ft 250deg E of N of Taly Llyn; Llyn Egiau
50k map sheet Bangor (106)

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Map reference SH 7202 6699
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


E39907

Cross Polarized, E39907

Plane Polarized, E39907

Plane Polarized, E39907