BGS mineralogy and petrology collection record

Sample number E64320; COLLNOKB1320;
Sample Donor Not entered
Rock name 'Original entry: Feldspar Porphyry'
Stratigraphy Not entered
Comments (GROUP= )(FORM= Moelwyn Volc. Fm.)(MEMB= .)(IE=)(TEXTURE=Porphyritic
Locality details WALES. Snowdon (119)
50k map sheet Snowdon (119)

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Map reference SH 5978 3982
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


E64320

Cross Polarized, E64320

Plane Polarized, E64320

Plane Polarized, E64320