BGS mineralogy and petrology collection record

Sample number S28828; S28828/A; S28828/B;
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Hornblende-Biotite-(Granodioritic) Appinite'
Stratigraphy Not entered
Comments Basic appinite of enclosure in tonalite; less than 2 ft from tonalite junction
Locality details Shore 400 yds W 42 deg S of Ranachan
50k map sheet Tobermory (52)

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Map reference NM 7869 6117
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


S28828/A

Cross Polarized, S28828/A

Plane Polarized, S28828/A

Plane Polarized, S28828/A


S28828/B

Cross Polarized, S28828/B

Plane Polarized, S28828/B

Plane Polarized, S28828/B