BGS mineralogy and petrology collection record

Sample number MR21640
Sample Donor Chaperlin,K.
Rock name 'Original entry: Felsite'
Stratigraphy Ordovician. Ordovician.
Comments Felsite intrusive into Ordovician Shale. NGR as in register.
Locality details Quarry name: not recorded: at Disused Qry. on Foel Newydd, 700 yd SSE of Pary's Farm, 1 3/4 ml SW of Amlwch Church
50k map sheet Holyhead (93)

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Map reference SH 435 904
Year collected 1958 
Bore name Not applicable
Confidentiality No restrictions