BGS mineralogy and petrology collection record

Sample number E63297; COLLNOKB297;
Sample Donor Not entered
Rock name Rhyodacite. 'Original entry: Feldspar Porphyry Composite'
Stratigraphy Not entered
Comments 22m from contact, same sill as KB296(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Coarse-grained
Locality details Nant Mor/Croesor
50k map sheet Snowdon (119)

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Map reference SH 6220 4467
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, E63297

Plane Polarized, E63297

Plane Polarized, E63297