BGS mineralogy and petrology collection record

Sample number S21233
Sample Donor Simpson,J.B.
Rock name 'Original entry: ?Quartz-Monzonite Porphyry'
Stratigraphy Not entered
Comments Appears to grade into S. 21231 and 21232
Locality details 400 yds N 10 deg E of point where Glenmore River turns sharp south
50k map sheet Tobermory (52)

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Map reference NM 5902 6496
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


S21233

Cross Polarized, S21233

Plane Polarized, S21233

Plane Polarized, S21233