BGS mineralogy and petrology collection record

Sample number E15949; COLLNO1339;
Sample Donor Road Board
Rock name 'Original entry: Chloritised Andesitic Crystal Tuff'
Stratigraphy Not entered
Comments Coarse grained.
Locality details Treffgarn Granite Quarries.
50k map sheet Fishguard (210)

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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


E15949

Cross Polarized, E15949

Plane Polarized, E15949

Plane Polarized, E15949