Tremolite from Avery County, North Carolina, USA
USA | |
| Wilson, W.F., McKenzie, B.J. (1978) Mineral Collecting Sites in North Carolina. Information Circular 24. North Carolina Division of Mineral Resources |
| Ross, C.S. (1935) Origin of the copper deposits of the Ducktown type in the southern Appalachian region. Professional Paper 179. US Geological Survey doi:10.3133/pp179 |