BGS mineralogy and petrology collection record

Sample number S28827
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Dolerite'
Stratigraphy Not entered
Comments 6 ft E 40 deg N dolerite dyke; somewhat vesicular, cuts tonalite and big-feldspar granodiorite. ?Type
Locality details Allt an Fhaing, 950 yds S 21 deg E of Carnach
50k map sheet Tobermory (52)

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Map reference NM 8466 6004
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


S28827

Cross Polarized, S28827

Plane Polarized, S28827

Plane Polarized, S28827