BGS mineralogy and petrology collection record

Sample number E10848; COLLNO249;
Sample Donor Blake,Professor
Rock name 'Original entry: Hornblende-Biotite-Gneiss'
Stratigraphy Not entered
Comments see mem. Geology of Anglesey pp 326-7 Basic Gneiss with Albite a little Quartz, Ilmenite & Apatite Mona Complex The Gneisses
Locality details Ridge S. of Parys Mountain
50k map sheet Holyhead (93)

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Map reference SH 440 901
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


E10848

Cross Polarized, E10848

Plane Polarized, E10848

Plane Polarized, E10848