|
USA | |
| MacFall (1975) Gem Hunter's Guide |
| Gems and Minerals of America- Jay Ellis Ransom-1974 |
| [var. Agatized coral] Charlie Smith's Collection |
| Mason, Anita (1976) The World of Rocks and Minerals. Larousse & Co., Inc., New York. |
| [var. Sardonyx] Zeitner, June Culp (1968) Appalachian Mineral & Gem Trails. Lapidary Journal, Inc. |
| Gems and Minerals of America- Jay Ellis Ransom-1974 |
| Gems and Minerals of America- Jay Ellis Ransom-1974 |
| M.B. Smith, 1975, Withlacoochee River Agate: Lapidary Journal, v. 29, no. 8, p. 1590. |
| Graves, Henry (1966) in The Agates of North America (San Diego: Lapidary Journal Inc.) |
| Rocks & Min.: 14:78. |
| Rocks & Min.: 14:77-78. |
| Gems and Minerals of America- Jay Ellis Ransom-1974 |
| |
| Gems and Minerals of America- Jay Ellis Ransom-1974 |
Ballast Point, Tampa Bay, Tampa, Hillsborough County, Florida, USA