| Lat / long: | 41.49249, -72.51142 |
| Tertiary: | Tin, Feldspar, Semiprecious Gemstone, Mica |
| Other material: | Apatite, Beryl, Cassiterite, Cleavelandite, Columbite, Fluorite, Garnet, Lepidolite, Muscovite, Plagioclase, Quartz, Tantalite, Tourmaline |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| First production started: | 1896 |
| MRDS | W000945 |
| MAS | 90070002 |
| DEP | 10167375 |
| Reference | {Deposit:: BASTIAN EDSON S., USGS BULL 420, 1910, PP 48-49}{Deposit:: CAMERON, EUGENE N., ET.AL., USGS PROF. PAPER 255, 1954, PP 3}{Deposit:: KILLEEN, P.L., NEWMAN, W.L., TEXT FOR USGS MR-44, 1965, P 3}{Deposit:: STERRETT, DOUGLAS B., USGS BULL 740, 1923, PP 67-69}{Deposit:: CONFIDENTIAL UNPUBLISHED COMPANY AND GOVT. WAR MIN. REPT., F}{Deposit:: 91.1854, J-J MINE, MIDDLESEX CO., CONN.} |
| Reporter | Eastern Field Operations Center (EFOC) |