BGS mineralogy and petrology collection record

Sample number E28870
Sample Donor Chaperlin,K.; Macdonald,H.A.H.;
Rock name Not entered
Stratigraphy Not entered
Comments Coedana granite & associated hornfels
Locality details Gwalchmai
50k map sheet Holyhead (93)

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Map reference SH 397 794
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


E28870

Cross Polarized, E28870

Plane Polarized, E28870

Plane Polarized, E28870