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USA | |
| Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey. D. Allen Penick, Jr. (1987) Virginia Mineral Locality Index. Virginia Minerals:Virginia Division of Mineral Resources. 33-1:1-10 Rocks and Minerals, (1963) 38:565-570 Calver, James L. (1962) Geology and Mineral Resources of Albemarle County. Bulletin 77. Virginia Division of Mineral Resources Smith, J. W. (1961) Talc, Soapstone, and related stone deposits of Virginia. Virginia Minerals, Virginia Division of Mineral Resources 7:1-7 Bulletin 77. |
| Palmer C. Sweet (2006) BETTIE MARTIN IRON MINE AND OLD’S FURNACE NORTH GARDEN, VIRGINIA. Virginia Minerals Vol 49 No. 1&2 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Calver, James L. (1962) Geology and Mineral Resources of Albemarle County. Bulletin 77. Virginia Division of Mineral Resources Bulletin 77. |
| Rocks & Minerals: 60: 165. |
| Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey. |