BGS mineralogy and petrology collection record

Sample number E61608; COLLNOMH1522;
Sample Donor Howells,M.F.
Rock name Andesitic-Rock.
Stratigraphy Not entered
Comments Tuff/sediment
Locality details Tyran Mawr
50k map sheet Barmouth (149)

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Map reference SN 6791 1127
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


E61608

Cross Polarized, E61608

Plane Polarized, E61608

Plane Polarized, E61608