BGS mineralogy and petrology collection record

Sample number S34471
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Hornblende Porphyrite'
Stratigraphy Not entered
Comments Hornblende porphyrite, pebbles from conglomerate
Locality details Old quarry on side of Old Coach Road 770 yards E 13 deg S of Wildshaw, 2.5 miles N of Crawfordjohn
50k map sheet Sanquhar (15)

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Map reference NS 884 277
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


S34471

Cross Polarized, S34471

Plane Polarized, S34471

Plane Polarized, S34471