BGS mineralogy and petrology collection record

Sample number E473
Sample Donor Geikie,A.
Rock name 'Original entry: Decomposed Quartz Porphyry'
Stratigraphy Not entered
Comments Not entered
Locality details Penmaen-Melyn, Ramsey Sound.
50k map sheet St. Davids (209)

View images in GeoScenic related to 'St. Davids'

View the geology near 'St. Davids'

Map reference
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


E473

Cross Polarized, E473

Plane Polarized, E473

Plane Polarized, E473