BGS mineralogy and petrology collection record

Sample number S13518
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Banded Epidotic Sediment'
Stratigraphy Not entered
Comments Millbuie Epidotic Grit Series; pelitic elements, chlorite and abundant epidote, also chlorite
Locality details 0.25 mile S of summit of Beinn Bhreac, trig pt 401 ft
50k map sheet Colonsay (35)

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Map reference NR 4153 9836
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


S13518

Cross Polarized, S13518

Plane Polarized, S13518

Plane Polarized, S13518