BGS mineralogy and petrology collection record

Sample number S25074
Sample Donor Tyrrell, G.W.
Rock name Not entered
Stratigraphy Not entered
Comments Biotite rich microgranite probably vein
Locality details E face of Cir Mhor
50k map sheet Arran (Millport) (21)

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Map reference NR 970 430
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


S25074

Cross Polarized, S25074

Plane Polarized, S25074

Plane Polarized, S25074