Allanite Group from selected localities.
USA | |
| Deuser,W.G.,and Herzog,L.F.,(1962) Rubidium-strontium age determinations of muscovite and biotites from pegmatites of the Blue Ridge and Piedmont:Journal of Geophysical Research,v.67,p.1997-2004 |
Wilson,W.F and McKenzie,B.J,1978,Mineral Collecting Sites in North Carolina,Information Circular 24 |