BGS mineralogy and petrology collection record

Sample number E64238; COLLNOKB1238;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Intruding Llanrhychwyn Slates and Dolgarrog Volcanic Fm.(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details About 50m north of old lead mine
50k map sheet Bangor (106)

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Map reference SH 7608 6600
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, E64238

Plane Polarized, E64238

Plane Polarized, E64238