BGS mineralogy and petrology collection record

Sample number S21431; S21431/A;
Sample Donor Richey, James E.
Rock name 'Original entry: ?Quartz-Dolerite'
Stratigraphy Not entered
Comments NW dyke, ?pre-plutonic; Memoir, p. 352
Locality details 700 yds NNW of Kilchoan Established Church
50k map sheet Tobermory (52)

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Map reference NM 485 644
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


S21431

Cross Polarized, S21431

Plane Polarized, S21431

Plane Polarized, S21431


S21431/A

Cross Polarized, S21431/A

Plane Polarized, S21431/A

Plane Polarized, S21431/A