BGS mineralogy and petrology collection record

Sample number S30173
Sample Donor Simpson,J.B.
Rock name Not entered
Stratigraphy Not entered
Comments Dyke, porphyritic with large feldspars
Locality details 1650 yds NE of spot ht 308 ft Auliston
50k map sheet Tobermory (52)

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Map reference NM 5607 5794
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


S30173

Cross Polarized, S30173

Plane Polarized, S30173

Plane Polarized, S30173