BGS mineralogy and petrology collection record

Sample number E7647; COLLNOA179;
Sample Donor Reynolds, Professor
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments W of Diabase Tongue
Locality details S side of Mynydd Gadder, Dolgelly
50k map sheet Barmouth (149)

View images in GeoScenic related to 'Barmouth'

View a geological map near 'Barmouth'

Map reference
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, E7647

Plane Polarized, E7647

Plane Polarized, E7647