BGS mineralogy and petrology collection record

Sample number E25411; COLLNORH45;
Sample Donor Hoare,R.H.
Rock name Tuff. 'Original entry: Tuff'
Stratigraphy Not entered
Comments Stream section; slates above and below
Locality details 1050 yds. at 265o from the Chapel at Henryiyo; 90 yds. at 230 yds. from Pant-Y-Tan
50k map sheet Bangor (106)

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View a geological map near 'Bangor'

Map reference SH 763 745
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, E25411

Plane Polarized, E25411

Plane Polarized, E25411