BGS mineralogy and petrology collection record

Sample number E51666; E51666/A; E51666/B; COLLNOLB475;
Sample Donor Jackson,A.A
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Top of brecciated tuff
Locality details 970 m 9 deg of Benglog
50k map sheet Bala (136)

View images in GeoScenic related to 'Bala'

View the geology near 'Bala'

Map reference SH 8072 2472
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


E51666/A

Cross Polarized, E51666/A

Plane Polarized, E51666/A

Plane Polarized, E51666/A


E51666/B

Cross Polarized, E51666/B

Plane Polarized, E51666/B

Plane Polarized, E51666/B