BGS mineralogy and petrology collection record

Sample number S8721
Sample Donor Symes, Richard G
Rock name 'Original entry: Biotite Porphyrite'
Stratigraphy Not entered
Comments Sill
Locality details 200 yds E of Loch Chorran
50k map sheet Inverarray (37)

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Map reference NM 867 131
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


S8721

Cross Polarized, S8721

Plane Polarized, S8721

Plane Polarized, S8721