BGS mineralogy and petrology collection record

Sample number E17309; COLLNOTJ1346;
Sample Donor James,T.
Rock name 'Original entry: Biotite Trachyte'
Stratigraphy Not entered
Comments Trachy-andesite.
Locality details Hannaborough quarry, 1.25 miles SSW. of Hatherleigh.
50k map sheet Okehampton (324)

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Map reference SS 530 031
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


E17309

Cross Polarized, E17309

Plane Polarized, E17309

Plane Polarized, E17309