BGS mineralogy and petrology collection record

Sample number S28342
Sample Donor Allan,J.K.
Rock name 'Original entry: Diaphthoretic Muscovite Schist'
Stratigraphy Not entered
Comments Diaphthoretic muscovite schist. Hard siliceous garnetiferous band in garnet gneiss; quartz-permeated and thermally altered
Locality details 170 yds S from Head of Bratta
50k map sheet Yell (130)

View images in GeoScenic related to 'Yell'

View the geology near 'Yell'

Map reference HU 476 989
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


S28342

Cross Polarized, S28342

Plane Polarized, S28342

Plane Polarized, S28342