Rare-earth-bearing minerals fergusonite and gadolinite from the Arran granite

A suite of rare earth element bearing minerals has been identified from mia rolitic cavities in the northern Arran granite. This is the first occurrenc e in the British Isles of in situ fergusonite and gadolinite to be confirme d by X-ray analysis. The presence of these minerals reflects the enrichment of rare earth elements in the highly fractionated granites in the southern sector of the British Tertiary Igneous Province.