BGS mineralogy and petrology collection record

Sample number S69097; COLLNONX640;
Sample Donor Rock,N.M.S.
Rock name 'Original entry: Coarse Biotite Pegmatite'
Stratigraphy Not entered
Comments Irregular boudinaged body in limestone of Glen Urquhart Complex; biotite Rb/Sr age 428+-5 Ma
Locality details Most westerly of old limestone quarries near Upper Gartally Farm
50k map sheet Fort Augustus (73)

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Map reference NH 4857 3175
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


S69097

Cross Polarized, S69097

Plane Polarized, S69097

Plane Polarized, S69097