BGS mineralogy and petrology collection record

Sample number S495; COLLNO1668;
Sample Donor Macconachie,A.F.
Rock name 'Original entry: Trachyte F'
Stratigraphy Not entered
Comments "Porphyrite"
Locality details Braid Quarry, at Upper Braid
50k map sheet Edinburgh (32)

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Map reference NT 2467 6997
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


S495

Cross Polarized, S495

Plane Polarized, S495

Plane Polarized, S495