BGS mineralogy and petrology collection record

Sample number S20705
Sample Donor Anderson, E.M.
Rock name 'Original entry: Granulite'
Stratigraphy Not entered
Comments Band of graphitic biotite granulite associated with S. 20693: micaceous granulite in Old Gneiss
Locality details 700 ft N of summit cairn, Druim an Aoineidh
50k map sheet Iona (43)

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Map reference NM 2563 2255
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


S20705

Cross Polarized, S20705

Plane Polarized, S20705

Plane Polarized, S20705