BGS mineralogy and petrology collection record

Sample number E64244; COLLNOKB1244;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Clasts from reworked Lower Rhyolitic Tuff Fm. Some carbonate alteration. XR CS 182. (No grid ref.)(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=Fine grained, flow banded.
Locality details Forestry loc., Moel Hebog
50k map sheet Snowdon (119)

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Map reference SH 56 48
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, E64244

Plane Polarized, E64244

Plane Polarized, E64244