BGS mineralogy and petrology collection record

Sample number E49440; COLLNODJ35;
Sample Donor Jackson,I.
Rock name Not entered
Stratigraphy Not entered
Comments Lower Old Red Sandstone, St. Maughan's Group, top of purplish calcareous sandstone.
Locality details Small exposure N. of stream in Mamhilad House Wood, which is 1060 m. at 140 deg. from Trig. point of Mynydd Garn-wen.
50k map sheet Abergavenny (232)

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Map reference SO 2960 0351
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


E49440

Cross Polarized, E49440

Plane Polarized, E49440

Plane Polarized, E49440