BGS mineralogy and petrology collection record

Sample number E62076; COLLNOGW114;
Sample Donor Woodhall, D.G.
Rock name Metamafite.
Stratigraphy Not entered
Comments Field name: Dolerite, N margin of large intrusion. Thin section: coarse-grained (<2 mm) crystalline igneous rock, now highly altered/metamorphosed now comprises mainly chlorite, sericite and Fe-oxides, uncommon relict feldspar
Locality details 900 m 359 deg from Waen Fechan. 4.45 Km SW of Dolgellau Bridge (S End)
50k map sheet Barmouth (149)

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Map reference SH 6864 1751
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


E62076

Cross Polarized, E62076

Plane Polarized, E62076

Plane Polarized, E62076