BGS mineralogy and petrology collection record

Sample number E7244; COLLNO271;
Sample Donor Thomas, Dr.
Rock name 'Original entry: Decomposed Chloritised ? Trachyte'
Stratigraphy Not entered
Comments Not entered
Locality details 2. Tump of Knareston.
50k map sheet St. Davids (209)

View images in GeoScenic related to 'St. Davids'

Map reference Not entered
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


E7244

Cross Polarized, E7244

Plane Polarized, E7244

Plane Polarized, E7244