BGS mineralogy and petrology collection record

Sample number S13561
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Quartz-Syenite'
Stratigraphy Not entered
Comments Micaceous seam of syenite at junction of syenite proper and basic margin
Locality details North scar, Eilean Easdail, Kiloran Bay
50k map sheet Colonsay (35)

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Map reference NR 402 985
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


S13561

Cross Polarized, S13561

Plane Polarized, S13561

Plane Polarized, S13561