BGS mineralogy and petrology collection record

Sample number S28147
Sample Donor Read, H.H.
Rock name 'Original entry: Andesite-Biotite-Hornblende Schist'
Stratigraphy Not entered
Comments Hornblendic sill
Locality details N side of N Geo of Brough
50k map sheet Unst (131)

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Map reference HP 572 128
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


S28147

Cross Polarized, S28147

Plane Polarized, S28147

Plane Polarized, S28147