BGS mineralogy and petrology collection record

Sample number E64255; COLLNOKB1255;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Airfall Dust Tuff'
Stratigraphy Not entered
Comments From tuff immediately below the basaltic hyaloclastite of the Pinnacles(GROUP= Nantmor Group)(FORM= Cwm Eigiau Fm.)(MEMB= .)(IE=E)(TEXTURE=Fine-grained, siliceous.
Locality details The Pinnacles, Curig Hill, Capel Curig.
50k map sheet Bangor (106)

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Map reference SH 7228 5810
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


Cross Polarized, E64255

Plane Polarized, E64255

Plane Polarized, E64255