BGS mineralogy and petrology collection record

Sample number S35138
Sample Donor Phemister,J.
Rock name 'Original entry: Quartz-Feldspar Porphyry; Hybrid Rock'
Stratigraphy Not entered
Comments Quartz-feldspar porphyry; hybrid rock, grey feldspar porphyry; Min Mag Vol. XXIX, p. 366
Locality details 3200 ft 30 deg N of W of cairn on Ronas Hill
50k map sheet North Shetland ? (129)

View images in GeoScenic related to 'North Shetland ?'

View the geology near 'North Shetland ?'

Map reference HU 297 839
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


S35138

Cross Polarized, S35138

Plane Polarized, S35138

Plane Polarized, S35138