Re: perlite
Posted by jim
on 5/15/2016, 10:21 pm, in reply to "
Re: perlite"
There's a really good article about the Rio Grande and some of the commodities they hauled, including perlite, if you can get ahold of the August 2004 issue of Trains magazine. One of perlite's uses is indeed as ceiling tile, and it is nonflammable.
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