Labradorite from Great Smoky Mountains Rift Basin, North America Plate
USA | |
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| Genth,F.A.,1891,The Minerals Of North Carolina:USGS Bulletion No.74 |
| Paris, Travis A. (2011) Tennessee Mineral Locality Index. Rocks & Minerals, 86 (4) 300-329 doi:10.1080/00357529.2010.517132 |