BGS mineralogy and petrology collection record

Sample number E12739
Sample Donor Hallimond,Doctor
Rock name 'Original entry: Ashy Chamosite-Limonite Oolitic Ironstone'
Stratigraphy Not entered
Comments Also on Anglesey Reg. ? Sht. 94
Locality details Bryn Celyn. Llangoed
50k map sheet Llandudno (94)

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Map reference SH 605 796
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


E12739

Cross Polarized, E12739

Plane Polarized, E12739

Plane Polarized, E12739