BGS mineralogy and petrology collection record

Sample number E4431; COLLNO212;
Sample Donor Cantrill, T.C.
Rock name Tuff. 'Original entry: Crystal Tuff'
Stratigraphy Not entered
Comments Block in field.
Locality details At Castle Hill, 400 Yds. E. by S. of Clog-y-fran, W. of St. Clear.
50k map sheet Carmarthen (229)

View images in GeoScenic related to 'Carmarthen'

View a geological map near 'Carmarthen'

Map reference SN 244 159
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


Cross Polarized, E4431

Plane Polarized, E4431

Plane Polarized, E4431