BGS mineralogy and petrology collection record

Sample number S24402
Sample Donor Richey, James E.
Rock name 'Original entry: Quartz-Gabbro Transitional To Granophyre'
Stratigraphy Not entered
Comments Quartz-gabbro becomes granophyre uphill later than porphyrite conesheet; Memoir, p. 287
Locality details 860 yds N 15 deg E of summit of Beinn na Seilg
50k map sheet Coll (51)

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Map reference NM 4612 6493
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


S24402

Cross Polarized, S24402

Plane Polarized, S24402

Plane Polarized, S24402