BGS mineralogy and petrology collection record

Sample number E18057; COLLNOM188;
Sample Donor Matley, C.A
Rock name 'Original entry: Banded Siltstone'
Stratigraphy Not entered
Comments Sandy slate, cf 60 ft below top of Rhinog Grit
Locality details N of Moelfre Manganese Mines
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


E18057

Cross Polarized, E18057

Plane Polarized, E18057

Plane Polarized, E18057