BGS mineralogy and petrology collection record

Sample number E8833; COLLNO343;
Sample Donor Blake,Professor
Rock name Rhyolite. 'Original entry: Porphyritic Rhyolite'
Stratigraphy Not entered
Comments Not entered
Locality details Tiot Hill near border of Caernarvon Town.
50k map sheet Caernarfon (105)

View images in GeoScenic related to 'Caernarfon'

View a geological map near 'Caernarfon'

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, E8833

Plane Polarized, E8833

Plane Polarized, E8833