BGS mineralogy and petrology collection record

Sample number S13864
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name 'Original entry: Granulitic Fine-Grained Dolerite'
Stratigraphy Not entered
Comments Lava, probably with a little decomposed olivine
Locality details 500 yds ESE of Callachally in stream
50k map sheet Mull (44)

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Map reference NM 5959 4191
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


S13864

Cross Polarized, S13864

Plane Polarized, S13864

Plane Polarized, S13864