BGS mineralogy and petrology collection record

Sample number S71163; COLLNONX986;
Sample Donor Rock,N.M.S.
Rock name 'Original entry: Lamprophyre, Fine-Grained'
Stratigraphy Not entered
Comments Lamprophyre sheet in Colonsay Group ; may belong to microdiorite or lamprophyre suites (Caledonian); sheet, concordant, 1-2 m thick, dip SSW 60 deg; fine variant
Locality details S side of Port Mor, W coast of Colonsay
50k map sheet Colonsay (35)

View images in GeoScenic related to 'Colonsay'

View the geology near 'Colonsay'

Map reference NR 3590 9460
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


S71163

Cross Polarized, S71163

Plane Polarized, S71163

Plane Polarized, S71163