BGS mineralogy and petrology collection record

Sample number E63485; COLLNOKB485;
Sample Donor Not entered
Rock name Microgranite. 'Original entry: Microgranite'
Stratigraphy Not entered
Comments Intrusion into Nant Ffrancon Fm., see also KB486(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Felsitic
Locality details Cwm Pennant
50k map sheet Snowdon (119)

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Map reference SH 5428 4763
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


E63485

Cross Polarized, E63485

Plane Polarized, E63485

Plane Polarized, E63485