BGS mineralogy and petrology collection record

Sample number S18920
Sample Donor Bailey, E.B.; Tait,D.;
Rock name 'Original entry: Feldspar-Porphyritic Bsalt'
Stratigraphy Not entered
Comments Somewhat mugearitic in character; Central Type; Memoir, p. 122
Locality details No. 20 lava, summit of Creag nam Fitheach
50k map sheet Mull (44)

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Map reference NM 6668 2410
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


S18920

Cross Polarized, S18920

Plane Polarized, S18920

Plane Polarized, S18920