BGS mineralogy and petrology collection record

Sample number E18149; COLLNORB1638;
Sample Donor Road Board
Rock name Quartzite. 'Original entry: Quartzite'
Stratigraphy Not entered
Comments Natural sandy pebbles; approx. 50% sand
Locality details Blackhill Qry; Woddbury
50k map sheet Exeter (325)

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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


E18149

Cross Polarized, E18149

Plane Polarized, E18149

Plane Polarized, E18149