BGS mineralogy and petrology collection record

Sample number E3303
Sample Donor Usher,W.A.E.
Rock name Chert. 'Original entry: Chert'
Stratigraphy Not entered
Comments Lower Devonian
Locality details Corgorlan Tar
50k map sheet Plymouth (348)

View images in GeoScenic related to 'Plymouth'

Map reference Not entered
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


E3303

Cross Polarized, E3303

Plane Polarized, E3303

Plane Polarized, E3303