BGS mineralogy and petrology collection record

Sample number S13863
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Porphyritic Augite Andesite'
Stratigraphy Not entered
Comments Lava, unusual type, ?a little olivine
Locality details 200 yds SE of Callachally
50k map sheet Mull (44)

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Map reference NM 5934 4207
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


S13863

Cross Polarized, S13863

Plane Polarized, S13863

Plane Polarized, S13863