BGS mineralogy and petrology collection record

Sample number E18105; COLLNOM222;
Sample Donor Matley, C.A
Rock name 'Original entry: Slate ?, Greisenized'
Stratigraphy Not entered
Comments Massive Ringers
Locality details E of River Mawddash. Opp. Plas Tyddyngwlady
50k map sheet Harlech (135)

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Map reference
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


E18105

Cross Polarized, E18105

Plane Polarized, E18105

Plane Polarized, E18105