BGS mineralogy and petrology collection record

Sample number S27402
Sample Donor Wilson, George Victor
Rock name 'Original entry: Nepheline Monchiquite'
Stratigraphy Not entered
Comments Dyke. See Orkney Mem, p. 129
Locality details Below HWM 740 yds NW of Crockness
50k map sheet Hoy (117)

View images in GeoScenic related to 'Hoy'

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Map reference ND 320 935
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


S27402

Cross Polarized, S27402

Plane Polarized, S27402

Plane Polarized, S27402