BGS mineralogy and petrology collection record

Sample number E53147; MR34818;
Sample Donor Harrison,R.K.; Jackson,A.A;
Rock name Not entered
Stratigraphy Not entered
Comments Sill. 0.9 m thick, intruded in grey siltstone "Hirnantite"
Locality details 1450 m NE 334 deg from Hirnant
50k map sheet Bala (136)

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Map reference SJ 057 242
Year collected 1979 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E53147

Cross Polarized, E53147

Plane Polarized, E53147

Plane Polarized, E53147