BGS mineralogy and petrology collection record

Sample number E60692; E60692/A; E60692/B; COLLNOFU453;
Sample Donor Fletcher, Chris J.N
Rock name Not entered
Stratigraphy Not entered
Comments Cone in cone structure
Locality details Nant y Ystalwyn
50k map sheet Builth (196)

View images in GeoScenic related to 'Builth'

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Map reference SN 806 574
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


E60692/A

Cross Polarized, E60692/A

Plane Polarized, E60692/A

Plane Polarized, E60692/A


E60692/B

Cross Polarized, E60692/B

Plane Polarized, E60692/B

Plane Polarized, E60692/B