BGS mineralogy and petrology collection record

Sample number S23019
Sample Donor Richey, James E.
Rock name 'Original entry: Grey Orthogneiss (Granodiorite Gneiss); Hornblende, Biotite, Oligoclase, Quartz'
Stratigraphy Not entered
Comments Representative grey orthogneiss (Lewisian). Memoir pp. 9-10; analysis p. 8. Summ Prog. 1925, pp. 128-129
Locality details Shore cliffs 0.5 mile + 275 yds N 25 deg E of Clabhach Church, Coll
50k map sheet Coll (51)

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Map reference NM 1846 5980
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


S23019

Cross Polarized, S23019

Plane Polarized, S23019

Plane Polarized, S23019