BGS mineralogy and petrology collection record

Sample number S22260
Sample Donor Richey, James E.
Rock name 'Original entry: Tonalite, Spotty'
Stratigraphy Not entered
Comments Tonalite, spotty, a short distance from margin; Memoir, pp. 339-340
Locality details 0.875 mile E 25 deg N of Achnaha
50k map sheet Coll (51)

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Map reference NM 4742 6880
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


S22260

Cross Polarized, S22260

Plane Polarized, S22260

Plane Polarized, S22260