BGS mineralogy and petrology collection record

Sample number E63019; COLLNOKB19;
Sample Donor Not entered
Rock name Microgranodiorite. 'Original entry: Microgranodiorite'
Stratigraphy Not entered
Comments Intrusion in Nant Ffrancon Fm., Drosgl pluton(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details Afon Rhaeadr Bach
50k map sheet Bangor (106)

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Map reference SH 6647 6927
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


E63019

Cross Polarized, E63019

Plane Polarized, E63019

Plane Polarized, E63019