BGS mineralogy and petrology collection record

Sample number S21815
Sample Donor Richey, James E.
Rock name 'Original entry: Quartz-Dolerite'
Stratigraphy Not entered
Comments Dolerite fragment in agglomerate; Memoir, p. 241
Locality details 1000 yds S 30 deg E of Aodann
50k map sheet Coll (51)

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Map reference NM 4569 6545
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


S21815

Cross Polarized, S21815

Plane Polarized, S21815

Plane Polarized, S21815