BGS mineralogy and petrology collection record

Sample number E20560; COLLNORB1725;
Sample Donor Road Board
Rock name Sandstone (Undifferentiated). 'Original entry: Quartzitic Sandstone'
Stratigraphy Not entered
Comments Not entered
Locality details |Bwlchcrwys Qry. 3/4 ml N of Tanygroes Village
50k map sheet Llangranog (194)

View images in GeoScenic related to 'Llangranog'

View a geological map near 'Llangranog'

Map reference SN 294 503
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


E20560

Cross Polarized, E20560

Plane Polarized, E20560

Plane Polarized, E20560