Haddam, CT Gemstones Mines
Gemstones Mines in Haddam, Connecticut
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Gillette Gem Tourmaline, Mineral Specimens, Mica, Feldspar Mine (Also | Unknown | Gemstones | ||
| Gillette Quarry | Gillette, Sterling C. | Private | Gemstones |