BGS mineralogy and petrology collection record

Sample number S33572
Sample Donor Macgregor,A.G.
Rock name 'Original entry: ?Mugearite Or Trachyte'
Stratigraphy Not entered
Comments ?Mugearite or trachyte; fragment from Lower Carboniferous tuff or agglomerate
Locality details 475 yds SSW of N extremity of Longskelly Point
50k map sheet North Berwick (41)

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Map reference NT 5196 8577
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


S33572

Cross Polarized, S33572

Plane Polarized, S33572

Plane Polarized, S33572