BGS mineralogy and petrology collection record

Sample number E40802; COLLNORC1030;
Sample Donor Cave,R.
Rock name 'Original entry: Laminated Pyritic Chloritoid Argillaceous Siltstone'
Stratigraphy Not entered
Comments Not entered
Locality details Stream Section, 1200 yds at 13 deg from Cefn Coch, Machynlleth
50k map sheet Aberystwyth (163)

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Map reference SN 7417 9503
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


E40802

Cross Polarized, E40802

Plane Polarized, E40802

Plane Polarized, E40802