BGS mineralogy and petrology collection record

Sample number S34472
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Hornblende Porphyrite, Rather Acid'
Stratigraphy Not entered
Comments Hornblende porphyrite, rather acid, 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


S34472

Cross Polarized, S34472

Plane Polarized, S34472

Plane Polarized, S34472