BGS mineralogy and petrology collection record

Sample number E46303; COLLNOBP4;
Sample Donor Lowe,D.J.
Rock name 'Original entry: Diorite'
Stratigraphy Not entered
Comments Diorite, sill intrusion in Ffestiniog Flags
Locality details Small crag, 460 yds 081 deg from Tyddyn Mawr
50k map sheet Harlech (135)

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Map reference SH 7586 2865
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


E46303

Cross Polarized, E46303

Plane Polarized, E46303

Plane Polarized, E46303