BGS mineralogy and petrology collection record

Sample number E62144; E62144/A; E62144/B; COLLNOBRM1311;
Sample Donor Merriman,R.J.
Rock name Metadolostone.
Stratigraphy Caradoc.
Comments Bentonite, 25-35 cm thick, weak cleavage; Caradoc
Locality details Farm Qry. 6.5 Km SE of Rhayader
50k map sheet Rhayader (179)

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Map reference SO 036 663
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


E62144/A

Cross Polarized, E62144/A

Plane Polarized, E62144/A

Plane Polarized, E62144/A


E62144/B

Cross Polarized, E62144/B

Plane Polarized, E62144/B

Plane Polarized, E62144/B