BGS mineralogy and petrology collection record

Sample number S30943; COLLNOSB228;
Sample Donor Buchan,S.
Rock name 'Original entry: Porphyritic Rhyolite'
Stratigraphy Not entered
Comments Porphyritic rhyolite; ORS
Locality details 1410 yds SW of the centre of Brei Holm and 1340 yds SE of S end of Gorda Water
50k map sheet West Shetland ? (127)

View images in GeoScenic related to 'West Shetland ?'

View the geology near 'West Shetland ?'

Map reference HU 177 598
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


S30943

Cross Polarized, S30943

Plane Polarized, S30943

Plane Polarized, S30943