BGS mineralogy and petrology collection record

Sample number S30962; COLLNOSB250;
Sample Donor Buchan,S.
Rock name 'Original entry: Porphyritic Rhyolite'
Stratigraphy Not entered
Comments Porphyritic rhyolite; ORS
Locality details 520 yds S of Watch Tower and 800 yds SW of Bragasetter
50k map sheet West Shetland ? (127)

View images in GeoScenic related to 'West Shetland ?'

View the geology near 'West Shetland ?'

Map reference HU 166 591
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


S30962

Cross Polarized, S30962

Plane Polarized, S30962

Plane Polarized, S30962