BGS mineralogy and petrology collection record

Sample number S24417
Sample Donor Richey, James E.
Rock name 'Original entry: Porphyritic Dolerite, ?Baked'
Stratigraphy Not entered
Comments Porphyritic dolerite, ?baked
Locality details Just S of northernmost house, Achosnich
50k map sheet Coll (51)

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Map reference NM 4476 6720
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


S24417

Cross Polarized, S24417

Plane Polarized, S24417

Plane Polarized, S24417