BGS mineralogy and petrology collection record

Sample number E4293; COLLNO15;
Sample Donor Barrow, G.
Rock name 'Original entry: Elvan Or Quartz Porphyry'
Stratigraphy Not entered
Comments See Geol.of Isles of Scilly pp.6;12;13
Locality details The dyke at Porthloo Coast of St.Mary's, NNE.of Hugh Town, Scilly Is
50k map sheet Isles of Scilly (357)

View images in GeoScenic related to 'Isles of Scilly'

View the geology near 'Isles of Scilly'

Map reference SV 908 114
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


E4293

Cross Polarized, E4293

Plane Polarized, E4293

Plane Polarized, E4293