BGS mineralogy and petrology collection record

Sample number S64484; COLLNOKX183;
Sample Donor Gallagher,M.J.
Rock name Not entered
Stratigraphy Not entered
Comments Local boulder up to 1m in length of pink porphyrite, intrudes rocks referred to L.O.R.S.
Locality details Triangulation point on Black Hill, 980m W of woodlands Farm
50k map sheet Hamilton (23)

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Map reference NS 7883 3931
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


S64484

Cross Polarized, S64484

Plane Polarized, S64484

Plane Polarized, S64484