BGS mineralogy and petrology collection record

Sample number E641; MR782;
Sample Donor Ramsey,Professor
Rock name 'Original entry: Trachytic Lava'
Stratigraphy Not entered
Comments Diabase
Locality details LOWER RIDGE 2M E OF CHIRBURY
50k map sheet Welshpool (151)

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Map reference SO 285 985
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


E641

Cross Polarized, E641

Plane Polarized, E641

Plane Polarized, E641