BGS mineralogy and petrology collection record

Sample number S23832
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Decomposed Coarse Ophitic Olivine Dolerite'
Stratigraphy Not entered
Comments Decomposed coarse ophitic olivine dolerite, bomb in agglomerate neck (probably Permian)
Locality details Polnesson Burn 1100 feet W 40 deg S from Houldsworth Colliery
50k map sheet Ayr (14)

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Map reference NS 422 117
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


S23832

Cross Polarized, S23832

Plane Polarized, S23832

Plane Polarized, S23832