BGS mineralogy and petrology collection record

Sample number E63480; COLLNOKB480;
Sample Donor Not entered
Rock name Rhyodacite. 'Original entry: Feldspar Porphyry'
Stratigraphy Not entered
Comments Intrusion into Graianog Sandstones, see also KB481(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details Y Garn
50k map sheet Snowdon (119)

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Map reference SH 5537 5277
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


Cross Polarized, E63480

Plane Polarized, E63480

Plane Polarized, E63480