BGS mineralogy and petrology collection record

Sample number S11736
Sample Donor Harker, Alfred
Rock name 'Original entry: Porphyritic Felsite'
Stratigraphy Not entered
Comments Long intrusion; Mem Small Isles, p. 175
Locality details Grulinn, Eigg
50k map sheet Rum (60)

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Map reference NM 451 847
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


S11736

Cross Polarized, S11736

Plane Polarized, S11736

Plane Polarized, S11736