BGS mineralogy and petrology collection record

Sample number E67193; COLLNOMZ76;
Sample Donor Barton, C.M.
Rock name Not entered
Stratigraphy Not entered
Comments Porphyritic, vesicular, volcanic. Upper Devonian
Locality details Heskeyn Quarry, 500 m SW of Tideford Church
50k map sheet Plymouth (348)

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Map reference SX 3445 5953
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


E67193

Cross Polarized, E67193

Plane Polarized, E67193

Plane Polarized, E67193