BGS mineralogy and petrology collection record

Sample number S13514
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Sediment, Slighlty Epidotic'
Stratigraphy Not entered
Comments Quartz, feldspar and some epidote grains in a felted matrix of white mica with some chlorite
Locality details Leac Buidhe, Colonsay
50k map sheet Colonsay (35)

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Map reference NM 425 003
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


S13514

Cross Polarized, S13514

Plane Polarized, S13514

Plane Polarized, S13514