BGS mineralogy and petrology collection record

Sample number E29200; COLLNODK245;
Sample Donor Knill,D.C.
Rock name Trachybasalt. 'Original entry: Trachybasalt'
Stratigraphy Not entered
Comments Not entered
Locality details Posbury Clump, 1/4 ml NE of Posbury
50k map sheet Exeter (325)

View images in GeoScenic related to 'Exeter'

View a geological map near 'Exeter'

Map reference SX 815 978
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, E29200

Plane Polarized, E29200

Plane Polarized, E29200