BGS mineralogy and petrology collection record

Sample number E48153A; COLLNODJ13; LABNO2771;
Sample Donor Jackson,A.A
Rock name 'Original entry: Laminated Siltstone Mudstone, Chloritic'
Stratigraphy Not entered
Comments Typical banded green Mst. Top part of Upper Llandovery
Locality details Forestry Rd. Cumisaf, 140 m SW of Garnedd
50k map sheet Aberystwyth (163)

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Map reference SN 6847 8409
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


E48153A

Cross Polarized, E48153A

Plane Polarized, E48153A

Plane Polarized, E48153A