BGS mineralogy and petrology collection record

Sample number S14012
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Granulitised Pebbly Quartzite'
Stratigraphy Not entered
Comments Pebble from Torridon conglomerate
Locality details Leac Bhuidhe, Colonsay
50k map sheet Colonsay (35)

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Map reference NM 4243 0024
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


S14012

Cross Polarized, S14012

Plane Polarized, S14012

Plane Polarized, S14012