BGS mineralogy and petrology collection record

Sample number S591; S591/A; S591/B;
Sample Donor Maconachie,A.
Rock name 'Original entry: Quartz Porphyrite'
Stratigraphy Not entered
Comments Quartz porphyrite, "porphyry"
Locality details N end of Cairngarroch Bay, 5 miles SE of Portpatrick
50k map sheet Stranraer (3)

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Map reference NX 04 49
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


S591/A

Cross Polarized, S591/A

Plane Polarized, S591/A

Plane Polarized, S591/A


S591/B

Cross Polarized, S591/B

Plane Polarized, S591/B

Plane Polarized, S591/B