BGS mineralogy and petrology collection record

Sample number S25775
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Monchiquitic Olivine Analcite Basalt'
Stratigraphy Not entered
Comments Monchiquitic olivine analcite basalt, dyke cutting ash neck (probably Permian in age), neck cuts Carboniferous limestone series
Locality details Patna Hill, 1130 yards W 9 deg S of Downieston, Patna
50k map sheet Ayr (14)

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Map reference NS 405 109
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


S25775

Cross Polarized, S25775

Plane Polarized, S25775

Plane Polarized, S25775