BGS mineralogy and petrology collection record

Sample number S30427; COLLNOTR187;
Sample Donor Robertson,T.
Rock name 'Original entry: Muscovite-Biotite-Microcline Granite'
Stratigraphy Not entered
Comments Granulite; relics of turbid plagioclase and the texture indicate a K-metasomatised rock
Locality details S6. Coast 100 yds E of light on Nag Ness, Whalsay
50k map sheet Central Shetland (128)

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Map reference HU 543 611
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


S30427

Cross Polarized, S30427

Plane Polarized, S30427

Plane Polarized, S30427