BGS mineralogy and petrology collection record

Sample number S21822
Sample Donor Richey, James E.
Rock name 'Original entry: Craignurite, Porphyritic'
Stratigraphy Not entered
Comments Composite sill, centre over 6 ft thick; Memoir, p. 196
Locality details 650 yds E of Maol Buidhe
50k map sheet Coll (51)

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Map reference NM 4684 6251
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


S21822

Cross Polarized, S21822

Plane Polarized, S21822

Plane Polarized, S21822