BGS mineralogy and petrology collection record

Sample number E64020; COLLNOKB1020;
Sample Donor Not entered
Rock name Basalt. 'Original entry: Basalt'
Stratigraphy Not entered
Comments Transitional hyaloclastite (Base of formation)(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=Cleaved
Locality details Cwm Tregalan
50k map sheet Snowdon (119)

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Map reference SH 613 535
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions