BGS mineralogy and petrology collection record

Sample number S18469
Sample Donor Tait,D.
Rock name 'Original entry: Basalt / Augite Andesite?'
Stratigraphy Not entered
Comments Lava, non-variolitic, Porphyritic Central Type / Derrynaculan Type; Memoir, pp. 24, 148; Summ Prog 1915, pp. 26-27
Locality details 0.5 mile SSW of Derrynaculan
50k map sheet Mull (44)

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Map reference NM 5640 2847
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


S18469

Cross Polarized, S18469

Plane Polarized, S18469

Plane Polarized, S18469