BGS mineralogy and petrology collection record

Sample number S21564
Sample Donor Richey, James E.
Rock name 'Original entry: Porphyritic Basalt'
Stratigraphy Not entered
Comments Porphyritic ?basalt, inclined sheet; Memoir, p. 192
Locality details 150 yds E of summit of Beinn na Seilg
50k map sheet Coll (51)

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Map reference NM 4597 6412
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


S21564

Cross Polarized, S21564

Plane Polarized, S21564

Plane Polarized, S21564