BGS mineralogy and petrology collection record

Sample number E66222; COLLNOWPR71;
Sample Donor Pratt, W.
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Not entered
Locality details 200 m. NNW. of Spot height 754 m. (Craig Cwm Amarch).
50k map sheet Barmouth (149)

View images in GeoScenic related to 'Barmouth'

View a geological map near 'Barmouth'

Map reference SH 7064 1203
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, E66222

Plane Polarized, E66222

Plane Polarized, E66222