BGS mineralogy and petrology collection record

Sample number S41724
Sample Donor Greig,D.C.
Rock name Not entered
Stratigraphy Not entered
Comments Specimen from banded granite or composite dyke, striking NW across river
Locality details Iorsa Water c. 3070 yards 278 deg from 2618 feet spot height Cir Mhor; 600 yards above confluence with Allt Garbh-Choire Dhuibh
50k map sheet Arran (Millport) (21)

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Map reference NR 945 437
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


S41724

Cross Polarized, S41724

Plane Polarized, S41724

Plane Polarized, S41724