BGS mineralogy and petrology collection record

Sample number E19781; MR17646; COLLNOAWW39;
Sample Donor Woodland,A.W.
Rock name Basalt. 'Original entry: Albite-Dolerite'
Stratigraphy Not entered
Comments Dolerite, thick sill below manganese ore.
Locality details 550 Yds. N. by W. of Benallt Mine.
50k map sheet Aberdaron and Bardsey Island (133)

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Map reference SH 222 286
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


E19781

Cross Polarized, E19781

Plane Polarized, E19781

Plane Polarized, E19781