BGS mineralogy and petrology collection record

Sample number S30313
Sample Donor Phemister,J.
Rock name 'Original entry: Biotite Porphyrite'
Stratigraphy Not entered
Comments Biotite porphyrite, long dyke crossing boundary fence, fP
Locality details 1200 yards N 10 deg E of Shiel
50k map sheet Sanquhar (15)

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Map reference NS 748 051
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


S30313

Cross Polarized, S30313

Plane Polarized, S30313

Plane Polarized, S30313