BGS mineralogy and petrology collection record

Sample number S23020
Sample Donor Richey, James E.
Rock name 'Original entry: Acid Hornblende-Biotite Gneiss'
Stratigraphy Not entered
Comments Granite gneiss of Ben Hogh (Lewisian). Memoir, pp. 7, 9; analysis p. 8. Summ Prog 1925, pp. 129-130
Locality details Shore cliffs 375 yds W 11 deg N of Ballyhaugh, Coll
50k map sheet Coll (51)

View images in GeoScenic related to 'Coll'

View the geology near 'Coll'

Map reference NM 1701 5810
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


S23020

Cross Polarized, S23020

Plane Polarized, S23020

Plane Polarized, S23020