BGS mineralogy and petrology collection record

Sample number S1240
Sample Donor Macconachie,A.
Rock name 'Original entry: Quartz Hornblende Biotite Porphyrite'
Stratigraphy Not entered
Comments Quartz hornblende biotite porphyrite, highly altered
Locality details E of Hartburn, 4miles NE of Kirkcudbright
50k map sheet Kirkcudbright (5)

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Map reference NX 73 53
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


S1240

Cross Polarized, S1240

Plane Polarized, S1240

Plane Polarized, S1240