BGS mineralogy and petrology collection record

Sample number S39440
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Biotite-Granite, Fine-Grained, White'
Stratigraphy Not entered
Comments Cf. fine-grained white biotite granite with very sparse large white feldspars; apparently veining schist xenolith
Locality details 220 yds NW of spot ht Eilean a' Mhuirich
50k map sheet Tobermory (52)

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Map reference NM 8021 6103
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


S39440

Cross Polarized, S39440

Plane Polarized, S39440

Plane Polarized, S39440