BGS mineralogy and petrology collection record

Sample number S68863
Sample Donor Rock,N.M.S.
Rock name 'Original entry: Friable Jointed Fine-Grained Semipelite'
Stratigraphy Not entered
Comments c. 25 cm thick, structurally overlying S. 68864; Glen Urquhart Metamorphic-Serpentinite Complex
Locality details Disused quarry, near Gartally road W of Balnagrantach
50k map sheet Fort Augustus (73)

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Map reference NH 4913 3160
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


S68863

Cross Polarized, S68863

Plane Polarized, S68863

Plane Polarized, S68863