BGS mineralogy and petrology collection record

Sample number S69436; S69436/A;
Sample Donor Henderson,W.G.
Rock name 'Original entry: Porphyritic Granite'
Stratigraphy Not entered
Comments Typical of locality
Locality details Quarry at S side of Allt na Lairige dam, 1540 m NNW of Maol Breac
50k map sheet Balquhidder (46)

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Map reference NN 2516 1717
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


S69436

Cross Polarized, S69436

Plane Polarized, S69436

Plane Polarized, S69436


S69436/A

Cross Polarized, S69436/A

Plane Polarized, S69436/A

Plane Polarized, S69436/A