BGS mineralogy and petrology collection record

Sample number S25536
Sample Donor Simpson,J.B.
Rock name 'Original entry: Acid Porphyrite (F.P.)'
Stratigraphy Not entered
Comments Acid porphyrite (fp.), L.O. red biotite feldspar porphyry intrusion
Locality details Tairlaw Burn (right bank) 1700 yards N 19 deg W from triangulation point 1263 Tairlaw Ring
50k map sheet Carrick (8)

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Map reference NS 403 001
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


S25536

Cross Polarized, S25536

Plane Polarized, S25536

Plane Polarized, S25536