|Lead-free fishing weights.|
Environmental concerns have prompted a switch from lead to other metals for fishing sinkers. Click the sample group link below to see what metals have been used.
According to the ads for these things, they really are made of tungsten. Because the density is only claimed to be 25% higher than lead, it can't be pure tungsten: Probably a typical sintered "tungsten heavy alloy" in which powdered tungsten is held together by a matrix of a lower melting point metal. (There's little doubt they do indeed contain tungsten: Anything else that is denser than lead would be much more expensive.)
Contributor: Theodore Gray
Acquired: 15 July, 2004
Sample Group: Fishing Weights