BGS mineralogy and petrology collection record

Sample number S22257
Sample Donor Richey, James E.
Rock name 'Original entry: Tonalite'
Stratigraphy Not entered
Comments Tonalite ?olivine outside 'screen; Memoir, p. 339
Locality details 0.75 mile E 10 deg S of Achnaha
50k map sheet Coll (51)

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View the geology near 'Coll'

Map reference NM 4715 6790
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


S22257

Cross Polarized, S22257

Plane Polarized, S22257

Plane Polarized, S22257