BGS mineralogy and petrology collection record

Sample number E15690; COLLNOSEH356;
Sample Donor Hollingworth,S.E.
Rock name 'Original entry: Biotite Corderite Andesite Hornfels'
Stratigraphy Not entered
Comments Biotite, purplish spotted, silty banded
Locality details 250 yds S 18 deg E of fork of Black Laid Beck
50k map sheet Cockermouth (23)

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Map reference NY 319 304
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


E15690

Cross Polarized, E15690

Plane Polarized, E15690

Plane Polarized, E15690