BGS mineralogy and petrology collection record

Sample number S21469
Sample Donor Richey, James E.
Rock name 'Original entry: Tonalite'
Stratigraphy Not entered
Comments Central acid intrusion, near edge
Locality details 1450 yds E of Achnaha
50k map sheet Coll (51)

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Map reference NM 4759 6813
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


S21469

Cross Polarized, S21469

Plane Polarized, S21469

Plane Polarized, S21469