Made in the USA By Published: Thursday, 01 May 2008 Print | Email | Comment | Share Propeller.com Slashdot.org Digg.com Del.icio.us Stumbleupon.com Reddit.com Newsvine.com Tweet The US industrial minerals industry is in rude health: M&A activity is strong, there is increasing interest from private equity and overseas players, and new projects are under development.