BGS mineralogy and petrology collection record

Sample number E38338; MR31855; COLLNO53;
Sample Donor Oldershaw,D.
Rock name Wacke. 'Original entry: Lithic Greywacke'
Stratigraphy Not entered
Comments Quartzitic sandy siltstone (Ordovician) Used as part of 1970's Roadstone Project
Locality details Allt Goch Qry. 1/3 ml N of Cwrt Newydd
50k map sheet Llangranog (194)

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Map reference SN 490 483
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


E38338

Cross Polarized, E38338

Plane Polarized, E38338

Plane Polarized, E38338