BGS mineralogy and petrology collection record

Sample number S25050
Sample Donor Tyrrell, G.W.
Rock name Not entered
Stratigraphy Not entered
Comments Basalt with xenocrysts margin of composite dyke of quartz felspar porphyry
Locality details An Cumhann shore, 1.5 miles N of Drumadook Point
50k map sheet Arran (Millport) (21)

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Map reference NR 880 310
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


S25050

Cross Polarized, S25050

Plane Polarized, S25050

Plane Polarized, S25050