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USA (FRL) | |
| Roe, Arthur, White, John S. Jr. (1976) A Catalog of the Type Specimens in the Mineral Collection, National Museum of Natural History. Smithsonian Contributions to the Earth Sciences 18. Smithsonian Institution Press Ross, Henderson, and Posnjak (1931), American Mineralogist: 16: 213. |
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| Rocks and Minerals,Sep-Oct,2004 |
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| Rocks and Minerals,Sep-Oct,2004 |
Fanny Gouge Mine, Micaville, Celo, Yancey County, North Carolina, USA