BGS mineralogy and petrology collection record

Sample number E54041; COLLNOLA974;
Sample Donor Allen,P.M.
Rock name 'Original entry: Microtonalite'
Stratigraphy Not entered
Comments Microtonalite
Locality details 370 m from Cefndeuddor
50k map sheet Harlech (135)

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Map reference SH 7312 2640
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


E54041

Cross Polarized, E54041

Plane Polarized, E54041

Plane Polarized, E54041