BGS mineralogy and petrology collection record

Sample number S20946
Sample Donor Flett,J.S.
Rock name 'Original entry: Acid Porphyrite'
Stratigraphy Not entered
Comments Acid porphyrite. Width uncertain. Covered
Locality details Field 100 yards NE of Cowans Farm, 1000 yards SE of Port Logan
50k map sheet Kirkmaiden (1)

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Map reference NX 10 40
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


S20946

Cross Polarized, S20946

Plane Polarized, S20946

Plane Polarized, S20946