BGS mineralogy and petrology collection record

Sample number S29650; S29650/B; S29650/C; S29650/a;
Sample Donor Flett,J.S.
Rock name 'Original entry: Nepheline Monchiquite'
Stratigraphy Not entered
Comments 3 slides; See S. 27583
Locality details Cliff Top at Duni Geo, 640 yds S 40 deg E of Isbister, S Ronaldsay
50k map sheet Hoy (117)

View images in GeoScenic related to 'Hoy'

View the geology near 'Hoy'

Map reference ND 470 842
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


S29650

Cross Polarized, S29650

Plane Polarized, S29650

Plane Polarized, S29650


S29650/B

Cross Polarized, S29650/B

Plane Polarized, S29650/B

Plane Polarized, S29650/B


S29650/C

Cross Polarized, S29650/C

Plane Polarized, S29650/C

Plane Polarized, S29650/C


S29650/a

Cross Polarized, S29650/a

Plane Polarized, S29650/a

Plane Polarized, S29650/a