BGS mineralogy and petrology collection record

Sample number S71499; S71499/A; S71499/B; COLLNOGY 62;
Sample Donor Barnes,R.
Rock name Not entered
Stratigraphy Not entered
Comments Microdiorite, intrusive in ?Silurian greywackes
Locality details Barlockhart Fell
50k map sheet Wigtown (4)

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Map reference NX 2104 5639
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


S71499

Cross Polarized, S71499

Plane Polarized, S71499

Plane Polarized, S71499


S71499/A

Cross Polarized, S71499/A

Plane Polarized, S71499/A

Plane Polarized, S71499/A


S71499/B

Cross Polarized, S71499/B

Plane Polarized, S71499/B

Plane Polarized, S71499/B