BGS mineralogy and petrology collection record

Sample number S18854
Sample Donor Bailey, E.B.; Tait,D.;
Rock name 'Original entry: Albitised Mugearitic Basalt'
Stratigraphy Not entered
Comments S. 18850-18869 are a suite of 20 lava-like pebbles from Lower ORS conglomerate underlying the shale with Cephalaspis, Thelodus, etc. Good flow structure; Pre-Tertiary Mem. p. 25
Locality details On shore at Gallanach Lodge, 2.5 miles SW of Oban
50k map sheet Mull (44)

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Map reference NM 8259 2700
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


S18854

Cross Polarized, S18854

Plane Polarized, S18854

Plane Polarized, S18854