BGS mineralogy and petrology collection record

Sample number E16577; COLLNOA104;
Sample Donor Reynolds, Professor
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Not entered
Locality details Source of stream between Tan y Gaden and Gill Farmyard
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, E16577

Plane Polarized, E16577

Plane Polarized, E16577