BGS mineralogy and petrology collection record

Sample number E63273; COLLNOKB273;
Sample Donor Not entered
Rock name Rhyodacite. 'Original entry: Feldspar Porphyry Composite'
Stratigraphy Not entered
Comments 70m at 152 degrees from KB272(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Slightly porphyritic
Locality details Nant Mor/Croesor
50k map sheet Snowdon (119)

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Map reference SH 6314 4510
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, E63273

Plane Polarized, E63273

Plane Polarized, E63273