BGS mineralogy and petrology collection record

Sample number S417; COLLNO1682;
Sample Donor Macconachie,A.F.
Rock name 'Original entry: Basalt Or Andesite?'
Stratigraphy Not entered
Comments "Porphyrite", decomposed F
Locality details Stone wall, Hillend Hill, Pentlands
50k map sheet Edinburgh (32)

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Map reference NT 24 66
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


S417

Cross Polarized, S417

Plane Polarized, S417

Plane Polarized, S417