BGS mineralogy and petrology collection record

Sample number S39465
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Microdiorite'
Stratigraphy Not entered
Comments Grey fine-grained inclusion in porphyritic granodiorite
Locality details Between mouth of burn at Ranachan and a point on coast 300 yds to E
50k map sheet Tobermory (52)

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Map reference NM 7907 6106
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


S39465

Cross Polarized, S39465

Plane Polarized, S39465

Plane Polarized, S39465