BGS mineralogy and petrology collection record

Sample number E29981; COLLNODK267;
Sample Donor Knill,D.C.
Rock name Trachybasalt. 'Original entry: Trachybasalt'
Stratigraphy Not entered
Comments Rotten Lavas
Locality details Barley House, N of Pocombe Qrys
50k map sheet Exeter (325)

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Map reference SS 899 921
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, E29981

Plane Polarized, E29981

Plane Polarized, E29981