BGS mineralogy and petrology collection record

Sample number E9112; COLLNO29;
Sample Donor Matley, C.A
Rock name 'Original entry: Chert Reddened With Iron Oxide'
Stratigraphy Not entered
Comments Round bodies which may be after Radiolaria. Jasper Lenticle.
Locality details North of Porth Llyfsig.
50k map sheet Aberdaron and Bardsey Island (133)

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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


E9112

Cross Polarized, E9112

Plane Polarized, E9112

Plane Polarized, E9112