BGS mineralogy and petrology collection record

Sample number S437; COLLNO1705;
Sample Donor Macconachie,A.F.
Rock name 'Original entry: Basalt Or Andesite?'
Stratigraphy Not entered
Comments "Porphyrite", decomposed F
Locality details N margin of Torduff Reservoir, Pentlands
50k map sheet Edinburgh (32)

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Map reference NT 206 677
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


S437

Cross Polarized, S437

Plane Polarized, S437

Plane Polarized, S437