BGS mineralogy and petrology collection record

Sample number S7707
Sample Donor Symes, Richard G
Rock name 'Original entry: Porphyrite'
Stratigraphy Not entered
Comments Dyke
Locality details 100 yds N of Achnaba
50k map sheet Oban (45)

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Map reference NM 9461 3658
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


S7707

Cross Polarized, S7707

Plane Polarized, S7707

Plane Polarized, S7707