BGS mineralogy and petrology collection record

Sample number E46327; COLLNOBP29;
Sample Donor Lowe,D.J.
Rock name 'Original entry: Microdiorite'
Stratigraphy Not entered
Comments Microdiorite intrusion in Ffestiniog Flags
Locality details Knoll, 1360 m at 316 deg from Bridge over Nant Hir
50k map sheet Harlech (135)

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Map reference SH 7821 3197
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


E46327

Cross Polarized, E46327

Plane Polarized, E46327

Plane Polarized, E46327