BGS mineralogy and petrology collection record

Sample number S16701
Sample Donor Wilson, J.S.G.
Rock name 'Original entry: Porphyritic Dolerite'
Stratigraphy Not entered
Comments Thin late irregular intrusion
Locality details 1750 ft N of Lochan Tana
50k map sheet Mull (44)

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Map reference NM 5621 2640
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


S16701

Cross Polarized, S16701

Plane Polarized, S16701

Plane Polarized, S16701