BGS mineralogy and petrology collection record

Sample number S25773
Sample Donor Simpson,J.B.
Rock name 'Original entry: Picrite (Ultrabasic Facies Of Theralite Essexite), Sill Group 1 Kylitic'
Stratigraphy Not entered
Comments Picrite (ultrabasic facies of theralite essexite), sill Group 1 kylitic, probably Permian
Locality details Craigdonkey near triangulation point on Benquhat Hill 900 yards NNE of school, Benquhat
50k map sheet Ayr (14)

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Map reference NS 467 103
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


S25773

Cross Polarized, S25773

Plane Polarized, S25773

Plane Polarized, S25773