Gazetteer
Housing Units (2000): 588
Land area (2000): 2.383658 sq. miles (6.173646 sq. km)
Water area (2000): 0.356550 sq. miles (0.923461 sq. km)
Total area (2000): 2.740208 sq. miles (7.097107 sq. km)
FIPS code: 28532
Located within: Ohio (OH), FIPS 39
Location: 38.623342 N, 82.847997 W
ZIP Codes (1990): 45629
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:
Franklin Furnace
Wikipedia
Franklin Furnace, also known as the Franklin Mine, is a famous mineral location for rare zinc, iron, manganese minerals in old mines in Franklin, New Jersey, US. This locale produced more species of minerals (over 300) and more different fluorescent minerals than any other location. The mineral association (assemblage) from Franklin includes willemite, zincite and franklinite.
During the mid-to-late 19th century the furnace was the center of a large iron making operation. Russian, Chilean, British, Irish, Hungarian and Polish immigrants came to Franklin to work in the mines, and the population of Franklin swelled from 500 (in 1897) to over 3,000 (in 1913).
The Furnace mine which was adjacent to the actual furnace, was a 120+ foot vertical shaft just under Franklin Falls.
Other rare minerals include esperite, clinohedrite, hardystonite, and others. There are scores of minerals found only here, such as johnbaumite (an arsenous apatite), mcgovernite, etc.
Sterling Hill, a very similar zinc orebody, is located a few miles away in Ogdensburg.