BGS mineralogy and petrology collection record

Sample number S21819
Sample Donor Richey, James E.
Rock name 'Original entry: Dolerite'
Stratigraphy Not entered
Comments Porphyritic dolerite inclined sheet, ?baked; Memoir, p. 182
Locality details 200 yds SSW of Aodann
50k map sheet Coll (51)

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Map reference NM 4446 6468
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


S21819

Cross Polarized, S21819

Plane Polarized, S21819

Plane Polarized, S21819