BGS mineralogy and petrology collection record

Sample number E67343
Sample Donor Rushton,A.A.
Rock name Tuff. 'Original entry: Tuff'
Stratigraphy Not entered
Comments Rhyolitic tuff
Locality details By fence, 880 Km at 317 deg from Gilfach Fm. (Top of "unit 2")
50k map sheet Snowdon (119)

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Map reference SH 8757 4908
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, E67343

Plane Polarized, E67343

Plane Polarized, E67343