BGS mineralogy and petrology collection record

Sample number S20963
Sample Donor Flett,J.S.
Rock name 'Original entry: Lamprophyre'
Stratigraphy Not entered
Comments Lamprophyre, dyke 2 feet wide, intermediate to porphyrite
Locality details Slate Heugh Bay 1010 yards SW of Port Logan
50k map sheet Kirkmaiden (1)

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Map reference NX 09 40
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


S20963

Cross Polarized, S20963

Plane Polarized, S20963

Plane Polarized, S20963