BGS mineralogy and petrology collection record

Sample number E64253; COLLNOKB1253;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Airfall Dust Tuff'
Stratigraphy Not entered
Comments From middle of unit. Same unit as KB 1251/2.(GROUP= Nantmor Group)(FORM= Cwm Eigiau Fm.)(MEMB= .)(IE=E)(TEXTURE=Fine-grained, siliceous, flinty.
Locality details Near footpath north of Pinnacles, Capel Curig.
50k map sheet Bangor (106)

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Map reference SH 7248 5819
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


E64253

Cross Polarized, E64253

Plane Polarized, E64253

Plane Polarized, E64253