BGS mineralogy and petrology collection record

Sample number S68650; S68650/A; COLLNOBX1283;
Sample Donor Henderson,W.G.
Rock name 'Original entry: Porphyrite'
Stratigraphy Not entered
Comments Porphyrite sheet, over 8 m thick, near centre; ?L Devonian
Locality details Below crags, 490 m NNW of Arrochar Outdoor Centre
50k map sheet Loch Lomond (38)

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View the geology near 'Loch Lomond'

Map reference NN 3024 0464
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


S68650

Cross Polarized, S68650

Plane Polarized, S68650

Plane Polarized, S68650


S68650/A

Cross Polarized, S68650/A

Plane Polarized, S68650/A

Plane Polarized, S68650/A