BGS mineralogy and petrology collection record

Sample number S31926
Sample Donor Kennedy, William Q.
Rock name 'Original entry: Hornblende-Biotite Granodiorite'
Stratigraphy Not entered
Comments Fine-grained porphyritic hornblende granodiorite
Locality details Allt a' Mhuilinn, 1000 yds W 7 deg N of Longrigg
50k map sheet Tobermory (52)

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Map reference NM 7941 6258
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


S31926

Cross Polarized, S31926

Plane Polarized, S31926

Plane Polarized, S31926