BGS mineralogy and petrology collection record

Sample number S21494
Sample Donor Richey, James E.
Rock name 'Original entry: Quartz-Dolerite'
Stratigraphy Not entered
Comments ?Quartz-dolerite; Memoir, p. 287
Locality details 1100 yds E 35 deg N of summit of Beinn na Seilg
50k map sheet Coll (51)

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Map reference NM 4640 6449
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


S21494

Cross Polarized, S21494

Plane Polarized, S21494

Plane Polarized, S21494