BGS mineralogy and petrology collection record

Sample number S9928; S9928/A;
Sample Donor Not entered
Rock name 'Original entry: Melanite-Biotite-(Pseudoleucite) Nepheline-Syenite'
Stratigraphy Not entered
Comments Slide with blue pencil number cut for Dr Horne. Specimen missing. White mineral from pegmatite vein in borolanite
Locality details Crag 100 yds E of pegmatite knoll, Allt a'Mhuilinn, E of Aultnacealgach
50k map sheet Ullapool (101)

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Map reference NC 289 099
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


S9928

Cross Polarized, S9928

Plane Polarized, S9928

Plane Polarized, S9928


S9928/A

Cross Polarized, S9928/A

Plane Polarized, S9928/A

Plane Polarized, S9928/A