BGS mineralogy and petrology collection record

Sample number S22258
Sample Donor Richey, James E.
Rock name 'Original entry: Tonalite'
Stratigraphy Not entered
Comments Tonalite very near margin; Memoir, p. 340
Locality details 0.75 mile E 30 deg N of Achnaha
50k map sheet Coll (51)

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Map reference NM 4731 6897
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


S22258

Cross Polarized, S22258

Plane Polarized, S22258

Plane Polarized, S22258