BGS mineralogy and petrology collection record

Sample number S26569
Sample Donor Flett,J.S.
Rock name 'Original entry: Oligoclase-Biotite Gneiss (Probably Graphitic)'
Stratigraphy Not entered
Comments 80 ft pale diopside gneiss 'D1'
Locality details SW shore of Gott Bay, Tiree
50k map sheet Tiree (42)

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Map reference NM 0439 4583
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


S26569

Cross Polarized, S26569

Plane Polarized, S26569

Plane Polarized, S26569