BGS mineralogy and petrology collection record

Sample number S71165; COLLNONX987;
Sample Donor Rock,N.M.S.
Rock name 'Original entry: Lamprophyre'
Stratigraphy Not entered
Comments Lamprophyre sheet in Colonsay Group ; may belong to microdiorite or lamprophyre suites (Caledonian); discordant dyke, 0.5 m thick, dip 80 deg NNE
Locality details S side of Port Mor, W coast of Colonsay
50k map sheet Colonsay (35)

View images in GeoScenic related to 'Colonsay'

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Map reference NR 3600 9467
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


S71165

Cross Polarized, S71165

Plane Polarized, S71165

Plane Polarized, S71165