BGS mineralogy and petrology collection record

Sample number S21622
Sample Donor Simpson,J.B.
Rock name Not entered
Stratigraphy Not entered
Comments 36 ft band foliated parallel to that of the surrounding Lewisian band in grey gneiss
Locality details On shore 400 yds E of Dun Shiader
50k map sheet Tiree (42)

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Map reference NL 9661 3870
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


S21622

Cross Polarized, S21622

Plane Polarized, S21622

Plane Polarized, S21622