BGS mineralogy and petrology collection record

Sample number E11174
Sample Donor Smith, B.
Rock name Not entered
Stratigraphy Not entered
Comments Fine grained silicious rock
Locality details North of BM 1396; from crag
50k map sheet Bala (136)

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Map reference SJ 089 271
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


E11174

Cross Polarized, E11174

Plane Polarized, E11174

Plane Polarized, E11174