BGS mineralogy and petrology collection record

Sample number E11171
Sample Donor Smith, B.
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Not entered
Locality details On Y Garn Mountain (most westerly outcrop)
50k map sheet Bala (136)

View images in GeoScenic related to 'Bala'

View a geological map near 'Bala'

Map reference SJ 087 274
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, E11171

Plane Polarized, E11171

Plane Polarized, E11171