BGS mineralogy and petrology collection record

Sample number S15589
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name Not entered
Stratigraphy Not entered
Comments NW dyke, 3 ft thick
Locality details 1500 yds ENE of Torlochan
50k map sheet Mull (44)

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Map reference NM 5695 4124
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


S15589

Cross Polarized, S15589

Plane Polarized, S15589

Plane Polarized, S15589