BGS mineralogy and petrology collection record

Sample number S31181; COLLNOAM30;
Sample Donor Macgregor,A.G.
Rock name Not entered
Stratigraphy Not entered
Comments St Leonard's Sill. Porphyritic 'basalt' a few feet SE of the breccia and near top of central layer of sill. Locatlty D of section.
Locality details Backyard, No. 39 St Leonard's Hill
50k map sheet Edinburgh (32)

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Map reference NT 2648 7299
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


S31181

Cross Polarized, S31181

Plane Polarized, S31181

Plane Polarized, S31181