BGS mineralogy and petrology collection record

Sample number E67031; COLLNOWPR362B;
Sample Donor Pratt, W.
Rock name 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Rhyolite/dacite
Locality details 690 m at 137 deg from Caermynach
50k map sheet Barmouth (149)

View images in GeoScenic related to 'Barmouth'

View the geology near 'Barmouth'

Map reference SH 6066 0684
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


E67031

Cross Polarized, E67031

Plane Polarized, E67031

Plane Polarized, E67031