BGS mineralogy and petrology collection record

Sample number N12883; N12883/A; COLLNOGX1761;
Sample Donor Mendum,J.R.
Rock name 'Original entry: Quartz Mylonite'
Stratigraphy Not entered
Comments Quartz mylonite
Locality details 350m SW of Mangersta (Mhangarstadh) Radio Station, Lewis
50k map sheet Uig ? (104)

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Map reference NB 0018 3294
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


N12883

Cross Polarized, N12883

Plane Polarized, N12883

Plane Polarized, N12883


N12883/A

Cross Polarized, N12883/A

Plane Polarized, N12883/A

Plane Polarized, N12883/A