BGS mineralogy and petrology collection record

Sample number S11711
Sample Donor Harker, Alfred
Rock name 'Original entry: Porphyritic Pitchstone'
Stratigraphy Not entered
Comments Mem Small Isles, p. 129
Locality details An Corrach, Sgurr of Eigg
50k map sheet Rum (60)

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Map reference NM 454 851
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


S11711

Cross Polarized, S11711

Plane Polarized, S11711

Plane Polarized, S11711