BGS mineralogy and petrology collection record

Sample number S21476
Sample Donor Richey, James E.
Rock name 'Original entry: Quartz-Gabbro Or Acid Gabbro'
Stratigraphy Not entered
Comments ?Ring dyke between central acid intrusion and eucrite; feldspathic variety; Memoir, p. 325
Locality details 0.5 mile SW of Achnaha
50k map sheet Coll (51)

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Map reference NM 4573 6783
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


S21476

Cross Polarized, S21476

Plane Polarized, S21476

Plane Polarized, S21476