BGS mineralogy and petrology collection record

Sample number S27692
Sample Donor Flett,J.S.
Rock name 'Original entry: Biotite Monchiquite'
Stratigraphy Not entered
Comments Duplicate of S. 27470
Locality details NE shore, 830 yds N 30 deg W of trig pt 57ft; Isle of Risa
50k map sheet Hoy (117)

View images in GeoScenic related to 'Hoy'

View the geology near 'Hoy'

Map reference ND 310 983
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


S27692

Cross Polarized, S27692

Plane Polarized, S27692

Plane Polarized, S27692