BGS mineralogy and petrology collection record

Sample number E63018; COLLNOKB18;
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 6652 6915
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


E63018

Cross Polarized, E63018

Plane Polarized, E63018

Plane Polarized, E63018