BGS mineralogy and petrology collection record

Sample number S31741
Sample Donor Richey, James E.
Rock name 'Original entry: Trondhjemite'
Stratigraphy Not entered
Comments Trondhjemite intrusion cutting Moine schists
Locality details Road cutting 730 yds N 10 deg E of spot ht 356 ft, Tom na Dubh Ghlaic, 300 yds E of Achairn Bridge
50k map sheet Tobermory (52)

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Map reference NM 7073 5060
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


S31741

Cross Polarized, S31741

Plane Polarized, S31741

Plane Polarized, S31741