BGS mineralogy and petrology collection record

Sample number S25048
Sample Donor Tyrrell, G.W.
Rock name Not entered
Stratigraphy Not entered
Comments Porphyritic dolerite intrusion
Locality details N side of Cnoc Dubh 1.5 miles WNW of Lamlash Pier
50k map sheet Arran (Millport) (21)

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Map reference NS 000 320
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


S25048

Cross Polarized, S25048

Plane Polarized, S25048

Plane Polarized, S25048