BGS mineralogy and petrology collection record

Sample number E18039; COLLNOM170;
Sample Donor Matley, C.A
Rock name 'Original entry: Sericitic Chloritic Feldspathic Grit'
Stratigraphy Not entered
Comments Green grit
Locality details 300 yds E of Cefa Cam, Old Slate Qry.
50k map sheet Harlech (135)

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Map reference
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


E18039

Cross Polarized, E18039

Plane Polarized, E18039

Plane Polarized, E18039