BGS mineralogy and petrology collection record

Sample number S8731; S8731/A;
Sample Donor Harker, Alfred
Rock name 'Original entry: Amygdaloidal Basalt'
Stratigraphy Not entered
Comments Metamorphosed
Locality details An Sguman, 350 yds NNE of trig pt
50k map sheet Minginish (70)

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Map reference NG 437 191
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


S8731

Cross Polarized, S8731

Plane Polarized, S8731

Plane Polarized, S8731


S8731/A

Cross Polarized, S8731/A

Plane Polarized, S8731/A

Plane Polarized, S8731/A