BGS mineralogy and petrology collection record

Sample number E49787; COLLNOAN33;
Sample Donor Wilson,A.C.
Rock name 'Original entry: Brown Mica, Plagioclase, Ilmenite, Hornfels'
Stratigraphy Not entered
Comments Cordierite, plagioclase, ? metasomatized basic igneous rock. ( ? Devonian).
Locality details Crags just N. of Zawn A Bal, 430 m. at 196 deg from triangulation point at The Crowns.
50k map sheet Penzance (351)

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Map reference SW 3619 3331
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


E49787

Cross Polarized, E49787

Plane Polarized, E49787

Plane Polarized, E49787