BGS mineralogy and petrology collection record

Sample number S18833
Sample Donor Bailey, E.B.; Tait,D.;
Rock name 'Original entry: Feldspar-Porphyritic Basalt'
Stratigraphy Not entered
Comments Rather an unusual type for big-feldspar basalt lava; Memoir, pp. 121, 138
Locality details No. 12 lava, upstream from no. 11; big feldspar lava
50k map sheet Mull (44)

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Map reference NM 7008 3337
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


S18833

Cross Polarized, S18833

Plane Polarized, S18833

Plane Polarized, S18833