BGS mineralogy and petrology collection record

Sample number S41742
Sample Donor Greig,D.C.
Rock name Not entered
Stratigraphy Not entered
Comments Porphyritic intrusion in Dalradian schist some 200 yards ffrom margin of northern granite
Locality details Glen Catacol, near base of lowest buttress of Madadh Lounie, c. 1050 yards 259 deg from 1104 feet triangulation point on Creacan nan Caorach
50k map sheet Arran (Millport) (21)

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Map reference NR 917 487
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


S41742

Cross Polarized, S41742

Plane Polarized, S41742

Plane Polarized, S41742