BGS mineralogy and petrology collection record

Sample number S21490
Sample Donor Richey, James E.
Rock name 'Original entry: Gabbro'
Stratigraphy Not entered
Comments Medium-grained gabbro cut by acid vein; Memoir, p. 336
Locality details 2350 yds ENE of Achnaha
50k map sheet Coll (51)

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Map reference NM 4838 6863
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


S21490

Cross Polarized, S21490

Plane Polarized, S21490

Plane Polarized, S21490