BGS mineralogy and petrology collection record

Sample number S21444
Sample Donor Richey, James E.
Rock name 'Original entry: ?Altered Quartz-Dolerite'
Stratigraphy Not entered
Comments Cone sheet cutting NW dyke; Memoir, p. 186
Locality details Shore 100 yds E of Rudha Groulin
50k map sheet Coll (51)

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Map reference NM 4692 7102
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


S21444

Cross Polarized, S21444

Plane Polarized, S21444

Plane Polarized, S21444