BGS mineralogy and petrology collection record

Sample number S25462
Sample Donor Phemister,J.
Rock name Not entered
Stratigraphy Not entered
Comments Porphyrite in Pipe Rock 8-10 ft thick
Locality details Allt an Aonghais 730 yds up from R Cassley
50k map sheet Altnaharra (108)

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Map reference NC 3480 2065
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


S25462

Cross Polarized, S25462

Plane Polarized, S25462

Plane Polarized, S25462