BGS mineralogy and petrology collection record

Sample number S18844
Sample Donor Bailey, E.B.; Tait,D.;
Rock name 'Original entry: Porphyritic Augite Andesite'
Stratigraphy Not entered
Comments Microporphyritic lava between sills; of Derrynaculan type
Locality details No. 1 lava; ESE slope of Maol nam Fiadh (no. 1 most easterly and lowest on slope)
50k map sheet Mull (44)

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Map reference NM 639 332
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


S18844

Cross Polarized, S18844

Plane Polarized, S18844

Plane Polarized, S18844