BGS mineralogy and petrology collection record

Sample number S30091
Sample Donor Richey, James E.
Rock name 'Original entry: ?Tholeiite'
Stratigraphy Not entered
Comments 30 ft ?tholeiite dyke, trend NW
Locality details 700 yds N 30 deg W of Gaskan
50k map sheet Tobermory (52)

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Map reference NM 7972 7312
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


S30091

Cross Polarized, S30091

Plane Polarized, S30091

Plane Polarized, S30091