BGS mineralogy and petrology collection record

Sample number S25933
Sample Donor Stephens,J.V.
Rock name 'Original entry: Monchiquite (?Alnoite)'
Stratigraphy Not entered
Comments Dyke zero to 3 ft 11 in wide, trend 50 deg
Locality details On coast, 410 yd WNW of trig pt, Houton Head
50k map sheet Kirkwall (119)

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Map reference HY 306 037
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


S25933

Cross Polarized, S25933

Plane Polarized, S25933

Plane Polarized, S25933